Abstract: This invention implements an image display technique capable of setting a display effect and providing a more effective display which reflects a feature in an image without performing any cumbersome operation by a viewing user in a slide show of sequentially displaying digital images. An image display method of adding a special effect to a plurality of images, changing the plurality of images in time series, and sequentially displaying the plurality of images includes an input step of inputting an image, an area detection step of detecting a plurality of feature areas from the input image, a determination step of determining the content of the special effect on the basis of the detection results of the plurality of detected feature areas, and a display control step of displaying the image with the determined special effect.

Abstract: A control management system for controlling electrical devices is disclosed. The control management system comprises a plurality of electrical devices, and a keyboard-video-mouse switch. Each electrical device corresponds to a transforming unit for generating a protocol command signal, and a first protocol signal transceiver for wirelessly transmitting the protocol command signal via a communication interface. The keyboard-video-mouse switch comprises a plurality of second protocol signal transceivers, a plurality of converting modules, a plurality of system controllers, and a switch unit. Each of the second protocol signal transceiver corresponds to one of the first protocol signal transceivers and is used for receiving the protocol command signal from the corresponding first protocol signal transceiver. Each converting module, coupled to one of the plurality of second protocol signal transceivers, is used for converting the protocol command signal into a driving command.

Abstract: An intelligent color gamut management method. The intelligent color gamut management method performs a saturation mapping and a luminance mapping separately according to a characteristic of a target device, thereby enabling the target device to represent a natural color image. Accordingly, it is possible to reduce color reproduction distortion of an image between different color devices having different color gamuts and also reproduce a natural color image, and also, secondary CMY colors, which vary depending on a color temperature, can be adjusted to be more natural. Since the color gamut boundary can be easily obtained, a memory capacity can be saved a freedom of algorithm can be increased.

Abstract: Techniques relating to gamuts and gamut mapping are described. In one instance, a process identifies a gamut attribute and generates a gamut having the attribute.

Abstract: An image display device in which one dot is displayed using M (M is an integer larger than 3) sub-pixels having different colors and being disposed adjacent to each other in a vertical direction or horizontal direction, a ratio of a length of the sub-pixel of the one dot in a disposition direction to a length, in a direction orthogonal to the disposition direction being M:3, includes a resolution converter that converts the resolution in the disposition direction of the image data which defines an image to be displayed for every dot to 3/M; a color separating unit that separates the image data converted by the resolution converter into color components corresponding to the M sub-pixels for every dot; and a driving circuit that drives the sub-pixels so as to have a resolution defined by the image data separated by the color separating unit.

Abstract: An image processing apparatus for controlling a display apparatus including a luminance modulation element and a color modulation element that are configured using different modulation elements, includes: a control value determination unit that determines, based on an input target color value, using a plurality of color conversion matrixes that describe a relationship between the target color value and a control value for the color modulation element for each control value for the luminance modulation element, the control value for the color modulation element; and a correction unit that non-linearly corrects the control value for the color modulation element according to a characteristic of the color modulation element.

Abstract: Techniques and tools for representing pixel data in a video processing or capture system are described. Described techniques and tools provide efficient color representation for video processing and capture, and provide flexibility for representing colors using different bit precisions and memory layouts. Described techniques and tools include video formats that can be used, for example, in hardware or software for capture, processing, and display purposes. In one aspect, chroma and luma information for a pixel in a video image is represented in a 16-bit fixed-point block of data having an integer and fractional components. Data can be easily converted from one representation to another (e.g., between 16-bit and 10-bit representations). In other aspects, formats for representing 8-, 10- and 16-bit video image data (e.g., packed and hybrid planar formats), and codes for indicating the formats, are described.

Abstract: A wide gamut RGB digital display, such as an LCD display, digital television, printer, or any other suitable display, includes wide color gamut configuration message control logic that is operative to indicate, to an image source provider, wide gamut RGB indication information and wide color gamut format definition information that indicates that wide gamut RGB color data is to be received by the wide gamut RGB digital display. The wide gamut configuration message control logic is also operatively responsive to wide gamut confirmation information that is received from the image source provider. The wide gamut RGB digital display also includes logic that is operative to display received wide gamut RGB color data that was received in response to the wide gamut RGB indication information and the format definition information.

Abstract: A method of converting an input color codeword from a first color format to a second color format comprises providing a reference format having reference bit positions and comparing the first bit positions associated with the first color format to the reference bit positions. Second bit positions associated with the second color format are compared to the reference bit positions. The relative bit position shifts based on the compared first bit positions and the compared second bit positions are determined. Format conversion bit masks are then generated based on the first and second color formats and the determined relative bit position shifts. The input color codeword is converted to the second color format based on the format conversion bit masks and the relative bit position shifts.

Abstract: An image data processing method transforms a picture signal having a broad dynamic range to another picture signal having a narrow dynamic range. The picture signal having the narrow dynamic range is subjected to inverse transform to thereby output a recovered signal having the broad dynamic range. A difference between the original picture signal and the recovered signal, both having the broad dynamic range, is produced and then stored in a recording medium as difference data. A parameter for software processing to be executed for reproduction of the original picture signal later is also stored in the recording medium. In this way, the method can transform the original data with the broad dynamic range to the data of a standard file format with the narrow dynamic range, record the transformed data, and allow the original data to be recovered and effectively used later, as desired.

Abstract: A data converter for converting a file having layout information to a file which does not depend on the process properties of an information apparatus is provided. The process which is executed by the control part in the data converter includes the step of determining the attributes of the apparatus to which mail is transmitted if a file is attached to received mail, the step of executing a conversion process if data conversion is necessary, the step of generating a message that mail is incoming which includes information on the location where the file that has been generated through the conversion process is stored, the step of transmitting the message that mail is incoming to the recipient's apparatus, the step of storing the file without converting data if data conversion is unnecessary, and the step of transmitting the received mail to the recipient's apparatus.

Abstract: The invention relates to a method of modifying the appearance attributes of digital images comprising: defining in a first channel of a color corrector a first set of appearance attribute corrections to be applied to the images; determining a first set of appearance attribute correction parameters corresponding to the first set of appearance attribute corrections; in the first channel of the color corrector defining at least one further set of appearance attribute corrections to be applied to the images; determining a set of appearance attribute correction parameters corresponding to the or each of the further sets of appearance attribute corrections; and combining each of the sets of appearance attribute correction parameters into a single set of appearance attribute correction parameters. The invention also relates to a method where the channel is implemented in software and to apparatus and software for carrying out the methods.

Abstract: A display device has: an RGB-RGBW conversion circuit that converts RGB signals fed thereto into RGBW signals; a display panel that has a plurality of dots each composed of four, namely R, G, B, and W, unit pixels and that displays an image based on the RGBW signals; a defect position specifier that specifies, if a unit pixel is found defective, a position of the defective pixel on the display panel; and a conversion rate controller that controls the rate at which, when the RGB signals are converted into the RGBW signals, the RGB signals are converted into a W signal according to the position of the defective pixel. If the defective pixel is a W pixel, the conversion rate for pixels adjacent thereto is made lower than the standard conversion rate set for the entire display panel.

Abstract: Systems and methods for processing linear colorspace data may be reused to process nonlinear colorspace data at a comparable performance level while maintaining the precision of the nonlinear colorspace data. Nonlinear colorspace data is converted to a compact floating point format in a linear colorspace used by conventional graphics processors. The compact floating point format includes an 8 bit explicit mantissa (without an implied leading one) and a 3 bit exponent to maintain the precision of the nonlinear colorspace data. The 8 bit mantissa may be processed by conventional texture filtering units designed to process 8 bit (fixed or floating point) color values. The 3 bit exponent may by processed by conventional texture filtering units designed to process floating point color values.

Abstract: A facial image photographed by a digital camera is downloaded to a PC. When a facial image correction program starts, a correction window and a correction item selection window open on a monitor. When a user opens the facial image in the correction window, a pixel extraction circuit extracts pixels representing a skin area, an eye area, a teeth area, and a hair area from the facial image. Correction items to be performed are determined in the correction item selection window. A cursor position detection circuit detects the position of a cursor in the correction window. When the cursor is in one of the areas, a facial image correction circuit judges whether the correction item corresponding to the area is selected. If the corresponding correction item is selected, the facial image correction circuit subjects a pixel pointed by the cursor to predetermined correction processing.

Abstract: Video conversion using a 3D graphics pipeline of a graphical processing unit (GPU) is disclosed. A plurality of video data formatted in a first video format is accessed from a memory unit. Moreover, the plurality of video data is converted from the first video format to a second video format using a 3D graphics pipeline of the GPU. The plurality of video data formatted in the second video format is sent to the memory unit. The 3D graphics pipeline applies a filtering technique. In an embodiment, the filtering technique is an interpolation technique.

Abstract: An image processing device has a storage unit, a read-out unit, a color information generating unit, a color information converting unit and a color replacing unit. The storage unit stores color information of spot colors. The read-out unit reads out the color information from the storage unit. The color information generating unit generates color information of an alternate color based on the color information of the spot color. The color information converting unit generates each of first and second color information, the first color information is generated by converting the color information of the color plate for which color replacement is instructed into the color information of the spot color, the second color information is generated by converting the color information of the color plate for which the color replacement is instructed into the color information of the alternate color. The color replacing unit generates new color information.

Abstract: Disclosed are a method and a system that adaptively transform visual contents inputted from a network, in accordance with the visual characteristics of a terminal user. A visual characteristics descriptor that describes the information of the user visual characteristics in a predetermined format is proposed. The descriptor includes the information of the color vision deficiency type and the color vision deficiency degree. The color vision deficiency may be described in numerical degree or textual degree. The invention adaptively transforms visual contents differently in accordance with the color vision deficiency type.

Abstract: A method of determining implied sample areas for each data point of each color in a source pixel data specified in a first sub-pixel format is used for sub-pixel rendering an image on a display specified in a second sub-pixel format. Each of the first and second sub-pixel formats comprises a plurality of colored sub-pixels. The method comprises determining a geometric center of each colored sub-pixel of the first format to define a sampling point; and defining each implied sample area by forming lines that are substantially equidistant between the sampling point of one colored sub-pixel and the sampling point of another neighboring same color colored sub-pixel. A similar technique may be used for determining resample areas for computing color values for rendering an image specified in a first sub-pixel format on a display substantially comprising a plurality of colored sub-pixels arranged in a second sub-pixel format.

Abstract: In one embodiment, the present invention includes a method to convert a pixel tuple in a red, green, blue (RGB) color space having R, G, and B color values into a human recognizable color name corresponding to a range of numerical values of a linear color palette scale based on application of the RGB color values to a predetermined set of hierarchical rules. Other embodiments are described and claimed.

Abstract: A method and apparatus is used for gamut mapping to a printer gamut that includes receiving a narrow gamut, a wide gamut, a printer gamut for printing on a printer and a predetermined mapping between the narrow and printer gamuts, identifying overlapping areas in the wide gamut, the narrow and printer gamuts, determining when the narrow gamut overlaps areas of the wide gamut, utilizing the narrow gamut values when the determination provides overlapping areas of the narrow gamut and the wide gamuts, selecting a wide gamut interpolation point corresponding to the surface of the printer gamut when narrow gamut areas do not overlap the wide gamut according to the determination, selecting a narrow gamut interpolation point by mapping the narrow gamut to the printer gamut and interpolating the narrow gamut interpolation point and the wide gamut interpolation point expanding the narrow gamut values into the printer gamut.

Abstract: A color conversion definition correction apparatus corrects a color conversion definition defining a relation between first color data representative of a color by coordinates on a first color space and second color data representative of a color by coordinates on a second color space in such a manner that a plurality of first color data has a one-to-one correspondence with a plurality of second color data. A smoothing processing is applied to the second color data. A color difference between the reference color set up and a color represented by the second color data subjected to the smoothing processing is determined. The second color data subjected to the smoothing processing is corrected, when the color difference is larger than the reference color difference, in such a manner that a color difference between a color represented by the second color data and the reference color is small.

Abstract: Embodiments of the invention provide an image display mode for displays, such as a television, that do not use the entire display field for displaying an image. A user selectable modification of the image display is provided, where the image may be stepped a predefined column of pixels, or predefined row of pixels, depending on viewing format, at a time at a very slow rate. The image may be stepped a predefined column of pixels per predefined time period until it is entirely to one side of the display, at which point it may be slowly stepped back to the other side of the display.

Abstract: Methods and devices provide for remote management of a local computer by transferring screen frames produced by the local computer for viewing at a remote computer. A digital video signal from a local computer may be duplicated and scaled so that screen frame data corresponding to the screen frames produced by the local computer is passed through a network, such as the Internet, to the remote computer where the remote computer produces a display that contains the screen frames being transferred.

Abstract: An image processing apparatus and information processing apparatus and method employs an output profile read-out unit that, according to a region designated by a preference selection unit, reads out one or more regional profiles from output profiles prepared for each such region. An output profile composing unit then combines the one or more output profiles based on a composition ratio input from the preference selection unit. The output profile is then input to a color matching processor for color matching.

Abstract: A method of processing image data comprises receiving input signals for specifying red, green and blue colours of the pixels of a display, performing a per-pixel low pass filtering (40) of the input signals, the low pass filtering function being dependent on the chrominance variation between adjacent pixels, and providing the filtered output signals for use in driving the pixels of a display. This method essentially measures the chrominance variation of the incoming signal, in the form of the colour change frequency, and depending on this variation, adaptively low-pass filters the incoming signal. This can be in such a way that the chrominance resolution of the outgoing signal is below the maximum chrominance resolution of the intended display, without errors in the average colour of a small group of pixels.

Abstract: A method and system for converting color image data (data outputting from element 202) from a, for example, three-dimensional color space format to a format usable by an n-primary display (206), wherein n is greater than or equal to 3. The system (converter 204) may define a two-dimensional sub-space having a plurality of two-dimensional positions, each position representing a set of n primary color values and a third, scaleable coordinate value for generating an n-primary display input signal (signal inputting toi display 206). Furthermore, the system may receive a three-dimensional color space input signal including out-of range pixel data not reproducible by a three-primary additive display, and may convert the data to side gamut color image pixel data suitable for driving the wide gamut color display.

Abstract: Providing accelerated video processing in a communication device may comprise receiving video data from a video source on a chip, determining a first format for at least a portion of the received video data, and determining a second format of at least a remaining portion of the received video data. At least a portion of the received video data having the first format may be routed to a first device for processing and at least a remaining portion of the received video data having the second format may be routed to a second device for processing. The portion of the received video data with the first format may comprise RGB format, while the remaining portion of the received video data with the second format comprises YUV format. The received video data comprises images with alternating video formats, which are accordingly routed to the first or second device for processing.

Abstract: A method and apparatus for interpolating values for a color space from an input color value. A unit hypercube enclosing the input value is generated based on values from a look up table. A set of boundary conditions are then imposed on the unit hypercube. To perform the actual interpolation, an initial barycentric projection is performed from a selected vertex of the unit hypercube through the input value onto a boundary of the unit hypercube. If the projection satisfies one of the boundary conditions, an interpolated value is calculated using the projection by back substitution. If the initial projection does not satisfy a boundary condition, an intermediate value is generated from the previous projection and successive barycentric projections are performed using respectively different vertices of the unit hypercube through intermediate values onto a boundary of the unit hypercube until a projection satisfies one of the boundary conditions.

Abstract: A method of presenting a selected portion of graphical images within a wireless terminal that includes receiving an original graphical image, having a source resolution, to be presented on a display screen. The native pixel resolution of the display screen may differ from that of the original graphical image. A complex decimation pattern when applied to the selected portion of the image allows the selected portion of the original graphical image to be resized from the source resolution to a decimated resolution operable to be displayed within the native resolution of the display screen. Decimated pixels need not be further processed to reduce the processing requirements imposed on the system processor. Operations normally associated with the decimated portions of the image may be offloaded from the processing module to improve system efficiency.

Abstract: In order to provide an image processing system and the like that can reproduce colors more appropriately, a projector is provided with a calibration signal generation section that generates a calibration signal for a white image and calibration signals for three subtracted-primary-color images, each of which is obtained by subtracting a predetermined input value from the RGB values of a predetermined primary color, one of plurality of kinds of primary colors that together form white; an image projection section for displaying each calibration image, based on the corresponding calibration signal; a sensing section for sensing each displayed calibration image; a primary-color amount information generation section for calculating a difference between sensing signal values and calculating an image signal value for the highest output value of each of the RGB colors, based on that difference; an ambient-light amount information generation section for calculating an ambient-light amount based on differences between

Abstract: A method of converting a three primary color input signal comprises a first, a second, and a third input signal (C1, C2, C3) into a four primary color drive signal comprising a first, second, third, and fourth drive signal (P1, P2, P3, P4) for driving four primary colors of a multi-primary color additive display (3). Three functions (F1, F2, F3) representing the first, second, and third drive signal (P1, P2, P3) as a function of the fourth drive signal (P4) are defined. The intersection values (P4i) of the fourth drive signal (P4) are determined at a set of intersections of: the three functions (F1, F2, F3) mutually, and of the three functions (F1, F2, F3) and a line (F4) defined by the fourth drive signal (P4) being equal to itself, wherein only the intersection values (P4i) of functions having opposite signs of their first derivative are relevant.

Abstract: The values of each possible component output R, G, and B may be pre-computed for all values of each possible component input Y, U, and V. Each contribution of Y, U, and V input may then be loaded into a register and added in parallel, without overflow, resulting in a computationally inexpensive RGB output from a YUV input. In one embodiment, contributions of Y, U, and V to each of R, G, and B are retrieved from pre-computed tables. The YUV contributions for each value of R, G, and B are packed into three data elements and added together in parallel, resulting in a value for an RGB output.

Abstract: An apparatus for creating a digital photo album is disclosed. Digital photo albums may be created on the storage media by a method that includes the steps of displaying a group of images, receiving instructions to select a subset of those images and save the subset as an album, compressing the files corresponding to those images and saving the compressed files to the storage medium.

Abstract: Multiple independent displays from one graphics controller can be driven in a wide variety of modes using multiple display controllers. This invention incorporates a unique combination of enhancement building on a generic single multi-display graphics subsystem. Digital video is gaining vast popularity in the worldwide consumer, professional and commercial market. The applications of this invention cover all these market segments and include (but are not limited to) Digital Content Creation, Digital video playback, digital entertainment, DVD Authoring etc etc.

Abstract: Validating a color that is selected in an authoring environment for display in a destination media environment includes selecting a color for an application, converting the values of the color to those in a fundamental color space, and converting the values from the fundamental color space to those in a color space corresponding to the destination media environment. Validity of the selected color in the destination media environment depends on the component values in the destination media environment being within an acceptable range of values.

Abstract: In a method for reversibly transforming a data format, a forward transformation and a backward transformation are reciprocally conducted for data between unit systems having different resolution levels, and the forward transformation and the backward transformation, a first unit system having a lower resolution level is used as a common unit system, and a reversible data conversion is conducted by an integer operation for data in the first unit system having the lower resolution level and data in a second unit system having a higher resolution level higher than the first unit system.

Abstract: Video conversion using a 3D graphics pipeline of a graphical processing unit (GPU) is disclosed. A plurality of video data formatted in a first video format is accessed from a memory unit. Moreover, the plurality of video data is converted from the first video format to a second video format using a 3D graphics pipeline of the GPU. The plurality of video data formatted in the second video format is sent to the memory unit. The 3D graphics pipeline applies a filtering technique. In an embodiment, the filtering technique is an interpolation technique.

Abstract: A method of restoring RGB gray scale data for maintaining a sharpness of a screen and reducing a size of a memory is disclosed. The RGB gray scale data having M bits are truncated to generate a first RGB gray scale data having N bits, M being a positive integer and N being an integer less than M. RGB gray scale data information is generated based on a bit information of the first RGB gray scale data. A bit value of a MSB of the first RGB gray scale data is compared with a value of a dither table based on the RGB gray scale data information to generate a comparison value, when a bit value of at least one bit of the first RGB gray scale data is different from other bit values of the first RGB gray scale data. The first RGB gray scale data are compensated based on the RGB gray scale data information and the comparison value. Thus, the sharpness of a screen may be maintained and the size of the memory may be reduced.

Abstract: A video controller may include at least one video input port which may be programmably configured to receive either RGB or non-RGB color space signals. The video controller may programmably operate in either an RGB or non-RGB mode. In this way, the number of color space conversions may be reduced in some embodiments. For example, where a television output device is coupled to the video controller, the video controller may provide a non-RGB output signal.

Abstract: A system and method for image acquisition enables selective automated application of color management to color image data generated by an image-capturing device by the device driver for the device. In the image acquisition system, each image-capturing device has properties or operation parameters that can be set to control the operation of the device. During an image acquisition operation, color image data generated by the image-capturing device are transmitted to the device driver. If the operation parameters of the device are set to indicate that color management is to be performed, the device driver calls color management functions provided by the operating system to perform the desired color operation, such as a color space conversion, on the received color image data. The processed color image data are then sent to the image-processing application for further processing or editing.

Abstract: As a method of calibrating colors other than primary colors such as secondary colors, the contents of an ink color-separation table are reconstructed. However, it is difficult to reconstruct the ink color-separation table within the limitation of total ink amount permissible for a print sheet. Accordingly, a color patch corresponding to a signal value of a color to be calibrated is formed in a printer, then the signal value is calibrated based on a measured color value of the formed color patch and a target value corresponding to the signal value of the color to be calibrated, and calibration multidimensional table data is generated based on the measured color value of the formed color patch.

Abstract: Disclosed herein is a mobile communication terminal equipped with a camera having an image distortion compensation function which compensates image distortion created by a luminance difference between pixels in the vicinity of a central portion of a pixel array of an image sensor and pixels in the vicinity of an outer portion of a pixel array of the image sensor by detecting a Y-component value of the central pixel of the pixel array of the image sensor and Y-component values of the pixels located diagonally to the central pixel, comparing the Y-component value of the central pixel with the Y-component values of the pixels located diagonally to the central pixel, generating compensation values for compensating signal distortion in each of the pixels located diagonally to the central pixel according to the comparison result, and outputting a distortion compensation command, together with the compensation values, to the ISP (image signal processor).

Abstract: A method, apparatus and computer program product are provided for implementing picture format conversion to X,Y plot for waveform comparisons. A picture file and user selected X,Y boundaries are received. Non-white pixels of the picture file between the user selected X,Y boundaries are converted to X,Y coordinate values in a selected format. The converted X,Y coordinate values are plotted.

Abstract: A method for determining lattice points to be referenced to prepare the correspondence defining data, said method including steps of prescribing a smoothness evaluation function which has a function form differing depending on each region in the color gamut to which the lattice point to be evaluated belongs and also contains a constraint condition that the closer the lattice point is to the boundary of the region of the color gamut, the more the evaluated value decreases as the result of its movement, optimizing the arrangement of lattice points in the device-independent color space by improving the rating of the smoothness evaluation function, with the lattice point position information in the low-dimensional color space varied, and determining lattice points to be referenced to prepare the correspondence defining data in the optimized state.

Abstract: To provide an environment-compliant image display system, image processing method, and information storage medium that enable correction of images within a shorter time, a Y value of color signals (Y3, x3, y3) measured by a color light sensor 60 and converted by an Y3x3y3 conversion section 143 is replaced with Y1, which is a Y value of an ideal environment, by a Y replacing section 142; color difference between the replaced color signals (Y1, x3, y3) and ideal color signals (Y1, x1, y1) is obtained by a color difference calculation section 145; and image display information is corrected by using that color difference (?x, ?y).

Abstract: The invention makes it possible to perform a quantitative evaluation not influenced by experience and sensitivity of a user, upon adjustment of a profile. The adjustment of first conversion data, for converting device independent data included in a profile describing characteristics of a device into device dependent data, is achieved by inputting sample data which is the device independent data, converting the sample data into the device dependent data using the first conversion data, converting the converted device dependent data into the device independent data using second conversion data which is conversion data included in the profile and which is conversion data for converting the device dependent data into the device independent data, and calculating a color difference between the sample data and the device independent data.

Abstract: A video and graphics system provides square graphics pixels to blend images having 640×480 pixels, such as graphics images provided by some set top boxes and intended to be displayed at a 12.27 MHz display sample rate, with images having 704×480 pixels, such as ITU-R 601 compliant images such as NTSC SDTV images, having oblong pixels and displayed at a 13.5 MHz display sample rate. A sample rate converter including a multi-phase-multi-tap filter is used to generate square pixels. The multi-phase-multi-tap filter provides a good balance of sharpness, smoothness, anti-aliasing and reduced ringing. The multi-phase-multi-tap filter can also be used to convert images having 320×480 pixels to images having 704×480 pixels. The multi-tap filter can be used for scan rate conversion of graphics or video images for HDTV or SDTV applications.

Abstract: An apparatus for displaying an advertisement image having a plurality of image elements includes a display panel for displaying the advertisement image thereon. The display panel includes a plurality of clusters which are serially connected with one another and are arranged in a pattern same as that of the advertisement image. Each of the clusters has at least one LED cell corresponding to one image element in the advertisement image, respectively, and a driving unit for driving the LED cell to represent the corresponding image element on the LED cell. An image editor performs an editing of the advertisement image by way of changing color and/or brightness of the respective image elements cells. And a control module controls the driving of the clusters in synchronization with an editing period for the advertisement image.

Abstract: An access structure for an internal memory of driving control elements includes a transformation and compression module to transform three primary color signals of graphic data to YCbCr signals and compress the YCbCr signals, thereby to reduce storage requirement so that a given internal memory in a driving control element can store bigger or more image and graphic data, a memory module to store the compressed YCbCr signals and a decompression transformation module to read and decompress the compressed YCbCr signals, and transform the YCbCr signals to three primary color signals to output image data.