Abstract: A multichannel imaging system generates an ensemble of images for each field of view of an object. Each image in the ensemble is intended to contain information from only one source among a plurality of sources for the object. However, due to crosstalk, at least a portion of the signal from a first source appears in a channel intended for a second source. Because the accuracy of the correction will be degraded if the images in an ensemble are spatially misaligned with respect to one another, the spatial offset between images is determined and a correction is applied to substantially eliminate the offset. Then, a correction to the signals is determined to substantially reduce the contributions to the signal in a channel from the signals in other channels. The signal processing can be employed to process the output signals for each of a plurality of different disclosed imaging systems.

Abstract: A reading pen for reading text has an elongate casing with a reading opening (3) formed in one end thereof, a printed circuit board (5) which is arranged inside the casing, light-emitting diodes (7a, 7b)) arranged inside the reading opening and adapted to illuminate the text that is to be read, and a light-sensitive sensor (9) arranged inside the reading opening and adapted to read the illuminated text. The printed circuit board (5) has an end portion at said one end of the casing. The end portion essentially corresponds to the form of the casing. The light-emitting diodes (7a, 7b) and the light-sensitive sensor (9) are arranged on said end portion.

Abstract: A method for enhancing scanned image output quality including the steps of scanning a first side of an image bearing media to acquire first side image data representative of a first side image and scanning a second side of the image bearing media to acquire second side image data representative of a second side image. A processing device operable in connection with a scanning device utilizes second side image data in processing first side image data to enhance the quality of the image output.

Abstract: An anticounterfeit detector (ACD) does both a high and low resolution scan of a document. The video signal resulting from the low resolution scan is used to detect a selected type of image, e.g., currency, negotiable securities, etc., by using ACD hardware or software. A corrective action is taken, e.g., preferably even partial printing from the high resolution scan is prevented, the video signal is invalidated, etc., if the selected image is detected. The low resolution signal can also be obtained by decimating or low pass filtering the high resolution signal.

Abstract: The method of the invention involves in finding the width and length of a scanned image in real time and then write the length and width into the header of a bitmap file as soon as the bottom line of the scanned image is found. The width of the scanned image can be computed from the width of the first occurrence of the meaningful image region. The width will be transferred to the scanner to reset the scan width for reading subsequent image data. The length of the scanned image cannot be determined until a bottom line is found. Each meaningful image region can be simultaneously written into the bitmap file while examining the bottom line of the scanned image. To find the bottom line, for each meaningful image region, sample a plurality of line areas to determine if the meaningful image region contains the bottom line. For each meaningful image region examined, sum up the total number of image lines until the bottom line is reached.

Abstract: A method, system, and computer readable medium are disclosed for detecting and removing defects using images captured at multiple orientations. Defects in a physical medium in which an image is formed can hamper attempts to record representations of the original image. To lessen the effects of these physical defects on captured images, multiple images are captured using multiple different orientations of the physical medium in which the image is formed. The physical defects obscure different image information when viewed from different angles. By capturing images at multiple orientations and combining these images, almost all of the desired image information from the original image can be recovered, despite imperfections in the physical medium. The present invention finds application in image capturing devices, such as flatbed scanners, photocopiers, and the like.

Abstract: An image sensing device senses an image of an object in a first luminous exposure in a predetermined image sensing position to obtain image data of the image, and a second luminous exposure which is different from the first luminous exposure is determined on the basis of the image data, and the image sensing device senses an image of an object again in the determined second luminous exposure and another image data is obtained. The image data of the two images sensed in two different luminous exposures is combined to generate image data of a single image of expanded dynamic range, and stored in a memory. Thereafter, the image sensing device is shifted to one or more predetermined positions by a pixel shifting unit, and two images are sensed at each position in the first and second luminous exposures, and image data of a single image of expanded dynamic range is obtained on the basis of the two images at each position.

Abstract: An image forming apparatus includes an original document conveying device to convey an original document at a predetermined conveying speed according to a magnification ratio. An original document reading device reads image information of the original document with a one-dimensional image sensor, and an information omission device omits information of the image information of the original document read by the original document reading device. An image forming device forms an image according to the image information read by the original document reading device synchronized with conveying of the original document by the original document conveying device.

Abstract: A scanner performs an initial low resolution scan of an area including an image and, after analyzing the initial scan data to determine the type of the image, a computer sends commands to the scanner to direct the scanner to perform a second scan. The second scan can be limited to the precise area of the image, and can be customized to perform efficient scanning based in the image type (e.g., color vs. black and white, or photo vs. text).

Abstract: An imaging system includes two sets of cameras: a first set for capturing optical mark or optical character recognition data and a second set for capturing visual images. Full visual images of pages containing answers to open-ended questions are retained and are retrievable by a reader such that an area of interest wherein the answer is expected is displayed, but the remaining area is also available for viewing. The system permits the alignment of a page based upon edge detection if the page contains only an open-ended answer, obviating the need for timing tracks. Hardware and software elements cooperate to store the image temporarily in a server having a response time commensurate with the scanner. The image is then processed with the use of high-performance index imaging for optical storage and retrieval, and then routed to a long-term storage device.

Abstract: A technique for making multiple copies that includes the steps of scanning a scan region that contains the image to be copied to produce an array of scan region pixel data that contains pixel data for the entire scan region; printing an image based on the array of scan region pixel data; processing the scan region pixel data to determine a subregion of the scan region that contains printable, non-background information; scanning the subregion of the scan region and providing to a print buffer print data only for the subregion of the scan region that contains printable, non-background information; and printing an image based on the subregion print data.

Abstract: An assembly for transferring information to and/or from flexible sheet media in a highly advantageous curved configuration is disclosed. The sheet material includes a length and a width defining first and second opposing surfaces. The assembly includes support means for supporting the sheet the curved configuration across its width, having the first surface inwardly oriented with respect to the curved configuration. Thereafter, moving means moves the flexible sheet material so supported in a direction along a read/write path generally parallel to the sheet material length and transverse to the direction of curvature. A read/write arrangement is provided which is configured for reading and/or writing information across the width of the first surface of the sheet as the sheet is moved along the path in the curved configuration.

Abstract: A device and process for the determination of the diameters of a crystal that is pulled from a liquified material. In this connection several video cameras are provided, each of which reproduces its own section along the vertical axis of the crystal or in a direction vertical to it. The image angles of the camera are laid out in such a way that the object to be reproduced completely fills the entire picture plane—at least in one direction. For objects with a small diameter; e.g., the crystal neck, a camera with a small image angle is used, while for objects with a large diameter; e.g., the crystal body, a camera with a large image angle is used.

Abstract: A system and method for automatically determining a set of default settings (with respect to a blank image) so that a uniform and high contrast image results when, for example, a finger is present on a sensor device. A background noise image and other diagnostic data, such as non-functional areas, are also automatically determined with respect to the blank image and stored for future reference. The above processing is performed each time the sensor device is initialized. Once the initialization process is complete, the individual places the required biometric feature, for example, a finger on the sensor device. The methodology adjusts the set of default settings to account for the condition of the biometric feature being imaged by increasing or decreasing the sensitivity level of the sensor device. The determination of optimum sets is achieved by analyzing specific regions of the image data rather than the entire image.

Abstract: In the teaching of an image analysis system, a video image of a reference object is captured. Several areas, each of which represents a class (22, 23), are marked on the video image, which is divided into pixels having their separate identification, such as color. Once all classes have been formed, each class is given a color which is assigned to all pixels in the class irrespective of identification. Pixels which may belong to more than one class, a so-called conflict class (24), and pixels which do not belong to any class, a so-called 0 class (25), are transferred to a residual class. Then the entire video image is processed in that the pixels which are not represented in the zero class (25) or the conflict class (24), are given a color value from the class having a pixel identification which is closest to the pixel concerned. The principles of the invention may be applied in general in connection with analysis techniques where objects may be characterized by means of an N-dimensional set of parameters.

Abstract: An information processing system includes an unattended low-resolution wide area pre scanning station and an unattended high-resolution line scanning station. The low-resolution station automatically identifies active image areas and borders on a plurality of light passing documents transported in seriatim along a prescan path. The unattended low-resolution scanning station generates a plurality of active image area signals indicative of the active image areas and borders in a plurality of light passing documents. The unattended high resolution line scanning station includes a high resolution line scanner that responds to the individual ones of said plurality of active image area signals.

Abstract: A digital camera which performs accurate document reading, and is used in a document processing system. In the document processing system, a document is divided into blocks and each block is sensed by a CCD, and perspective correction is performed on the image data of each of a plurality of images obtained by divisionally sensing the document. An OCR process is performed on the corrected image data to convert the corrected image data to text data. The converted text data, corresponding to the image data of each of the plurality of images, is combined into one text data, and the combined text data is output for printing.

Abstract: In a copy machine which is one type of an image forming apparatus, a job out of a plurality of jobs to be displayed on a display is selected according to a state of the copy machine and an operation towards the copy machine. When the copy machine is currently carrying out an operation, either a print operation or a read operation is selected with the read operation having a higher priority. When an error occurs resulting in of the copy machine being halted, the job causing the error is selected. When the copy machine currently attains a stop state, a predetermined setting carried out by the operator with respect to the copy machine is selected. The selected job is displayed on the display as the current job which is a job of the operator. Since the operator can identify the contents of the job according to the state of the copy machine, an image forming apparatus with a multi-job function is provided that can be easily handled by the operator.

Abstract: A system and method for generating a three-dimensional representation of an object or scene which minimizes the number of range scans required from different positions to produce an image of acceptable resolution. The technique first produces an initial mesh representation from a predetermined number of scans which is transformed into a solid. Vertices and surfaces in the solid mesh are tagged with either an occluded (unscanned) or imaged (scanned) tag. The occlusion tags allows the technique to select the best view for next scanning iteration by identifying the scanable surface area with the most occlusions. The technique then adjusts the object-scanner positioning so that the targeted view is scanned next. The process is repeated until an acceptable resolution of the object is achieved. The use of occlusion tags with a planning stage decreases the minimum number of scans necessary to complete the process.

Abstract: An integrated character recognition system for providing high-accuracy detection of a magnetic ink character string of a printed medium. The character recognition system includes a magnetic ink character recognition system for reading and decoding the magnetic ink character string. An optical character recognition system is also included performing the integrated character recognition system thereby overcoming many of the limitations presented by conventional technologies. A system and method for performing complete processing of a printed media having a magnetic ink character string utilizes both the optical and magnetic ink character recognition systems to perform virtually error-free character recognition of the magnetic ink character string.

Abstract: Surface defects in a reflection scan of a print made with visible light are corrected by using a scan of the print made with infrared light. This correction of surface defects is performed by controlling the intensity of defect detail in the infrared record by multiplying that defect detail by a gain. The gain varies for each region of the image as a function of the brightness of the image in that region. The gain approaches unity for white areas of the image, drops toward zero for darker areas, and approaches a small negative number for black areas of the image. The gain-multiplied defect detail is then subtracted from the visible image to create the corrected image free of the surface defects.

Abstract: A method and apparatus for inspecting the surface of articles, such as chips and wafers, for defects, includes a first phase of optically examining the complete surface of the article inspected at a relatively high speed and with a relatively low spatial resolution, and a second phase of optically examining with a relatively high spatial resolution only the suspected locations for the presence or absence of a defect therein.

Abstract: A computerized methodology for reducing swath scanner swath boundary discontinuities is provided by using a predetermined overlap of pixel rows during each sequential scan. Pixel data from a first scan of the overlapped pixel rows is compared to the pixel data from a second scan of the overlapped pixel rows, identical pixels of the overlapped pixel rows ideally having the same representative scan data. Errors are compensated by weighting representative scan data for each pixel row, linearly decreasing the weighting in proportion to the proximity to the swath boundary. In one embodiment, the weighting factor is an increase or decrease in the first scan data relative to the percent change in white level intensity captured in the second scan of the overlapped pixel rows.

Abstract: A three-dimensional video signal is generated by an objective lens, a stereo lens optical system, such as a stereo doublet lens for example, one or more image-to-signal converters, and a multiplexer. A three-dimensional monitor or two head mounted monitors may be used to render (e.g., display) the three dimensional video signal.

Abstract: A two-dimensional code reader for precisely and fast reading a two-dimensional code image containing luminance unevenness caused by variations in illumination, etc. To binarize cells, first the gray levels of the pixels at the center points of the cells are extracted, a local threshold value is found only from the extracted gray levels, and the gray levels are compared with the local threshold value, thereby binarizing the cells.

Abstract: Surface defects in a reflection scan of a print made with visible light are corrected by using a scan of the print made with infrared light. This correction of surface defects is performed by controlling the intensity of defect detail in the infrared record by multiplying that defect detail by a gain. The gain varies for each region of the image as a function of the brightness of the image in that region. The gain approaches unity for white areas of the image, drops toward zero for darker areas, and approaches a small negative number for black areas of the image. The gain-multiplied defect detail is then subtracted from the visible image to create the corrected image free of the surface defects.

Abstract: A currency identification system has at least two laterally displaced scanheads, one or more laterally moveable scanheads, or at least two laterally displaced sensors of a linear scanhead, the scanheads or sensors being positioned so as to permit scanning along at least two segments on a first side of a bill. The scanheads or sensors are capable of detecting characteristic information from the bill along the segments and generating corresponding output signals representing variations in the detected characteristic information from which scanned patterns of characteristic information may be generated. At least one scanned pattern is generated from the output signals, the at least one scanned pattern representing analog variations in the characteristic information along a segment of the bill.

Abstract: An image reader apparatus includes an illuminating element to illuminate a document face to be read, an optical element to form an image of the document face illuminated by the illuminating element, an image sensor to photoelectrically convert the image formed by light passing through the optical element, and a running roller rotating in contact with the document face, wherein a horizontal distance between a document contact portion of the running roller where the running roller contacts the document and a center of imaging of the optical element is shorter than or equal to 10 mm.

Abstract: A variable resolution color scanner comprising multiple color line sensors arranged substantially in parallel and at a mutual distance. The scanner is capable of providing color components that are combined by means of delays and interpolators in order to form a high precision color representation of a scanned original. The color components are combined electronically such that at least one of the color components represent(s) an actually imaged line on the original, and such that the other color components represent estimated lines. Alternatively, the color components are combined electronically such that all other color components represent estimated lines.

Abstract: In a three-dimensional shape extraction apparatus, a distance distribution extraction unit (54) obtains the distance distribution of an object on the basis of a plurality of images which are sensed by a camera at different image sensing positions, so that the images of the object partially overlap each other, and the position information of the respective image sensing positions of the camera. A three-dimensional model forming unit (55) forms a three-dimensional model of the object by sequentially combining the sequentially calculated distance distributions and the sensed images using the position information. A 3D display image generation unit (56) generates and displays a two-dimensional image from the three-dimensional model.

Abstract: In a method for modifying the resolution of an image obtained by digitising a real image, the digitised image includes a plurality of pixels of a particular intensity. The outlines in the digitised image are studied and isolated and additional pixels are created by interpolation of the intensities of original pixels located on one side of an outline to form an image with a modified resolution. The studying of outlines is achieved by locating, for close pixels, the intensity transitions representative of a gradient exceeding a particular threshold. The method is utilized for modifying the image resolution of facsimile machines.

Abstract: To reduce an amount of image data to transmit, and thereby achieve efficient utilization of a data transmission line, only coarse image information containing at least DC components of compressed image data stored in compressed form in a video server is transferred into a personal computer for display, and based on the displayed image, an editor performs edit work on the image of interest and produces additional information relating to the image.

Abstract: A first linear sensor array produces, at a first time of occurrence, a first image of a segment of an object as the object moves across the sensor at a variable speed. The image and its time of occurrence are accumulated in a buffer. As the object continues to move across the sensor, a successive plurality of the segment images seen by the first sensor are accumulated in the buffer, together with their respective times of occurrence. A second linear sensor array spaced a distance d from the first array produces, at a second time of occurrence, a second image of another segment of the moving object. The second image is compared with the accumulated first images to determine which of the accumulated first images is most similar to the second image. The object's speed S can then be estimated as an appropriately weighted function of d/(t.sub.j -t.sub.m) [i.e. S.varies.d/(t.sub.j -t.sub.m)], where t.sub.j is the time of occurrence of a selected one of the second images and t.sub.

Abstract: The present invention has an object to determine whether image data is generated by data processing such as PDL, or optically captured scan-in image, for each area.To achieve the object, a determining table is provided for distribution patterns of pixels having substantially the same pixel value for image data area composed of plural pixels. Then a reference area designating unit designates a reference area by selecting from input image data the pixel of interest having a pixel value and the reference pixels surrounding thereof. A same pixel value distribution generating unit compares the pixel value of the pixel of interest with the pixel values of the reference pixels in the reference area to generate a distribution pattern of the pixel having substantially the same pixel value. Next, a determining unit compares the generated distribution pattern with the distribution patterns held in the determining table to determine the reference area to be the image data generated by data processing.

Abstract: A method and apparatus for high resolution multibeam scanning at constant line intervals is disclosed, wherein simultaneous transfer of image data is achieved via multibeam scanning. According to the present invention, exposure scanning is accomplished a plurality of times relative to a single image surface of n scan lines. Each exposure scan is accomplished simultaneously relative to the total M lines using M individual light beams. Each of M individual beams are positioned such that there is a distance of M lines between adjacent beams. Each individual laser beam is used for exposure scanning of mutually different lines. Therefore, the scan lines of the various beams in a next scan cycle are apart (M-1) lines from the scan lines in the previous scanning cycle. In one embodiment of the invention, an image memory controller reads out image data from an image memory in the scan sequence rather than in the line array sequence.

Abstract: A method and apparatus for resizing or processing images initially retrieves a one-dimensional sample of the image, such as a line of pixels. The image can be of a machine-readable symbol, or other data. A moving window having, for example, five pixels, includes a center "hard core" and four surrounding pixels. Two or more structural sets or multisets are applied to the window to produce a set of pixels greater than the set of pixels in the original image. For example, the center pixel is repeated three times, while immediately adjacent left and right pixels are repeated twice. Thus, a series of nine pixels results. The resulting nine pixels are then sorted based on descending gray scale levels. The n-th largest pixels is selected, such as the third largest. The image is updated, the window moved, and the method repeats again. Pyramid filtering, cubic convolution interpolation, or other techniques can be used to reduce the size of an image, and more complex windows and structural sets can be employed.

Abstract: A method and apparatus for inspecting the surface of articles, such as chips and wafers, for defects, includes a first phase of optically examining the complete surface of the article inspected at a relatively high speed and with a relatively low spatial resolution, and a second phase of optically examining with a relatively high spatial resolution only the suspected locations for the presence or absence of a defect therein.

Abstract: A currency evaluating device for receiving a stack of currency bills, rapidly discriminating the bills in the stack and then re-stacking the bills which comprises an input receptacle, a transport mechanism for transporting in the direction of the narrow dimension of the bills from the input receptacle to one of a plurality of output receptacles, at a rate in excess of about 800 bills per minute, and a discriminating unit for determining the denomination of each bill. The device may also include an authenticating unit for determining the genuineness of the bills. The authenticating unit may detect by use of a plurality of magnetoresistive sensors or may detect by ultraviolet light.

Abstract: The present invention has as an object thereof to provide a semiconductor operational circuit which is capable of instantaneously processing in parallel a large quantity of information. The semiconductor operational circuit of the present invention which executes a predetermined operation with respect to a first signal train of signals A.sub.1, A.sub.2, . . . , A.sub.N-1, A.sub.N (where N is a positive integer) of N signals numbered from 1 to N, and a second signal train of signals B.sub.1, B.sub.2, . . . , B.sub.M-1, B.sub.M (where M is a positive integer) of M signals numbered from 1 to M, comprising a plurality of first operational circuits for executing a predetermined operation with respect to A.sub.i, and B.sub.i+n (where i is a positive integer and n is a positive or negative integer and 1.ltoreq.i.ltoreq.n and 1.ltoreq.i+n.ltoreq.M) and generating an output signal C.sub.i,n, at least one second operational circuit for generating the sum S.sub.

Abstract: A system and method for diagnosis of living tissue diseases is described. The system includes a computer device for controlling its operation. An operator control device is coupled to the computer device. A viewing screen is coupled to the computer device for displaying digitized images of the living tissue. The operator, using the control device, selects desired portions of the digitized image for further image enhancement according to a desired image enhancement feature selectable from a plurality of image enhancement features. The image enhancement features include any combination of grey scale stretching, contrast enhancement based on logarithmic histogram equalization, spot enhancement and magnification. The system further includes means for visualization and quantification of micro-calcifications, and means for visualization and quantification of mass spiculations.

Abstract: Picture images being joined without connection gaps can be produced with high quality by adjusting a position error, even if an error is included in a scanning position being detected, and by preventing a map missing area from arising which is caused by the adjustment of position error. A position error detection circuit detects a position error from picture information consisting of image data inside a scanning area being read overlapped by a line image sensor and storage data being stored in an image memory. Next, the position error detection circuit adjusts a scanning position coordinate for cancelling this position error, which is then output to a mapping circuit as an adjustment position coordinate. The mapping circuit stores the image data to the image memory according to the adjustment position coordinate.

Abstract: A currency authenticator having a plurality of sensitivity settings comprising a first characteristic detector. The first characteristic detector retrieves first characteristic information from a bill to be authenticated and generates an output signal. The currency authenticator further comprises a unit for selecting one of a plurality of sensitivity settings, a unit for storing reference information associated with each of the sensitivity settings, and a unit for comparing the output signal to the reference information associated with the one of the plurality of sensitivity settings selected by the unit for selecting. The unit for comparing indicates that the bill is counterfeit if the output signal does not satisfactorily compare with the reference information. The unit for storing reference information stores reference information for a plurality of denominations of bills.

Abstract: An image processing device is provided with a scanning means which performs subscanning by a pitch corresponding to a width covering a number of pixels less than the number of detectable pixels by a one dimensional image sensor by two or more pixels so as to overlap two or more line pixels. An edge emphasizing means performs an edge emphasis processing for the pixels from the second pixel to the second last pixel according to the image data obtained in response to the scanning by the scanning means.

Abstract: A currency identification system for identifying currency bills of different denominations of a plurality of currency systems. The device comprises a discriminating unit for discriminating the identity a bill, the discriminating unit retrieving characteristic information from said bill. Furthermore, a memory stores master characteristic information associated with each genuine bill which the system is capable of identifying; the memory storing master characteristic information associated with at least one genuine bill from at least two currency systems. A signal processing means compares the retrieved characteristic information with master characteristic information associated with at least one genuine bill; the signal processing means generating an indication of the identity of said bill based on said comparison when said bill is one that the system is capable of identifying.

Abstract: A method and device for discriminating documents by comparing a scanned pattern retrieved from a first side of a test document with one or more stored master patterns retrieved from a first side of one or more genuine documents and comparing a scanned pattern retrieved from a second side of a test document with one or more stored master patterns retrieved from a second side of one or more genuine documents.

Abstract: A currency identification system comprising at least two laterally displaced scanheads, one or more laterally moveable scanheads, or at least two laterally displaced sensors of a linear scanhead. The scanheads or sensors are positioned so as to permit scanning along at least two segments on a first side of a bill. The scanheads or sensors are capable of detecting characteristic information from the bill along the segments and generating corresponding output signals representing variations in the detected characteristic information from which scanned patterns of characteristic information may be generated. The system also comprises a pattern generator for generating at least one scanned pattern from the output signals, the scanned pattern representing analog variations in the characteristic information along a segment of the bill.

Abstract: Software, resident or a host computer, that is capable of parsing a data stream of multiple interleaved data signals into the individual data signals that are then ready for manipulation and further processing by the host computer.

Abstract: A disclosed device detects an observer's visual axis bi-directionally, comprising a light receiver for receiving light from the observer's eyeball via multiple photoelectric transfer element arrays, a first storage means for storing positions of photoelectric transfer elements outputting signals representing Purkinje images; a second storage for referencing the photoelectric transfer signals originating from multiple photoelectric transfer elements arranged in the horizontal and vertical directions of the light receiver, and storing the positions of photoelectric transfer elements that indicate characteristic points representing the pupil of an eyeball, and a detector for detecting a view point using the positional information stored in the first and second storages.

Abstract: An optional apparatus which can be connected to a printer or other optional apparatus includes a communication section for communicating with other apparatus and a control section which executes a command in response to the command received via the communication section; wherein the communication section has a first communication path for receiving a data string from an apparatus on the upstream side in communication and for transmitting the received data string to an apparatus on the downstream side of the communication and a second communication path for receiving a data string received from the apparatus on the downstream side of communication and for transmitting the received data string to the apparatus on the upstream side of the communication; and the control section executes a command in the command string received via the first communication path or the second communication path and loads the data indicating the execution result of the command in the command string.

Abstract: An electronic image processing system includes a scanner in which a light source is provided to illuminate an image captured on a film. A charge-coupled device produces digital data defining a multiplicity of picture elements which together represent the image. A look up table converts the data from the CCD into a format suitable for processing by a processor which data is stored in a framestore. The data in the framestore is read and processed by the processor and output for display of the image on a monitor. Characteristics or attributes of the displayed image are adjusted by the processor in response to user manipulation of a stylus and touch tablet device. Once the user is satisfied with the image as displayed the adjustment is used to alter the manner in which the scanner and look up table operate so that a further scanning of the image will provide data in the framestore representing the image with characteristics or attributes similar to those in the previously displayed image.