Abstract: An image inputter and a controller are provided, and the controller acquires a multiple-value image via the image inputter, acquires a first image obtained by performing a correction process and a simple binarization process on the multiple-value image and a second image obtained by performing the correction process on the multiple-value image, uses a difference value of a pixel value of the second image with respect to the first image on a pixel-by-pixel basis to determine whether a jaggy occurs when the multiple-value image is output as a simple binary image, when a jaggy occurs, determines a conversion method for converting the multiple-value image in accordance with an amount of statistics calculated using the difference value, and outputs an image obtained by conversion using the determined conversion method.

Abstract: An information loss determiner in an image processing device determines whether character collapse has occurred in a simple binarized image. If character collapse has not occurred in the simple binarized image, an image processing determiner selects simple binarization processing as the image processing method of output image data. If character collapse has occurred in the simple binarized image, the process proceeds to photograph area size determination. If the ratio of a photograph area size is less than or equal to a predetermined value, the information loss determiner determines that character collapse has occurred in a posterization processed image. If character collapse has occurred in the posterization processed image, the image processing determiner selects grayscale processing. If character collapse has not occurred in the posterization processed image, the image processing determiner selects posterization processing.

Abstract: Provided are a memory and a processor connected to the memory to execute a program stored in the memory. The processor classifies each of pixels included in an image into any one region of a region of achromatic color and a region of chromatic color inside a color space, uses the pixels classified into the region of achromatic color to extract a first predetermined number of representative colors, uses the pixels classified into the region of chromatic color to extract a second predetermined number of representative colors, and replaces each of the pixels included in the image with a pixel of a representative color having a smallest difference in pixel value from the pixels included in the image, among the first predetermined number of representative colors and the second predetermined number of representative colors, to generate a color-reduced image of the image.

Abstract: An image processing device includes an image reader that reads an image, a first determiner that determines whether character crushing occurs when the image is binarized, a second determiner that determines a rate of a photographic region in the image, and a controller that performs conversion into monochrome N-gradation image data based on determination results of the first and second determiners.

Abstract: An image processing device includes an image reader that reads an image, a first determiner that determines whether character crushing occurs when the image is binarized, a second determiner that determines a rate of a photographic region in the image, and a controller that performs conversion into monochrome N-gradation image data based on determination results of the first and second determiners.

Abstract: A system includes an image processing device connected to a transmission and reception device that communicates with an external device, and a terminal device connected to a display device. The image processing device includes an evaluation value calculation processor that calculates, for each of two or more types of output modes, an evaluation value of output image data when image data is output in the output mode, and an evaluation information transmitter that transmits evaluation information including information based on the evaluation value for each of the output modes, to the terminal device, via the transmission and reception device. The terminal device includes a display controller that performs control of displaying, for each of the output modes, the information based on the evaluation value corresponding to the output mode, on the display device, if the evaluation information is received.

Abstract: To provide an image processing device including a generator that generates output image data from input image data, a calculation processor that calculates an evaluation value indicating a degree of information loss of the output image data, a determiner that compares the evaluation value with a predetermined threshold value and determines a magnitude of the degree of information loss, and a display that displays information in accordance with a determination result by the determiner.

Abstract: An information loss determiner in an image processing device determines whether character collapse has occurred in a simple binarized image. If character collapse has not occurred in the simple binarized image, an image processing determiner selects simple binarization processing as the image processing method of output image data. If character collapse has occurred in the simple binarized image, the process proceeds to photograph area size determination. If the ratio of a photograph area size is less than or equal to a predetermined value, the information loss determiner determines that character collapse has occurred in a posterization processed image. If character collapse has occurred in the posterization processed image, the image processing determiner selects grayscale processing. If character collapse has not occurred in the posterization processed image, the image processing determiner selects posterization processing.

Abstract: A system includes an image processing device connected to a transmission and reception device that communicates with an external device, and a terminal device connected to a display device. The image processing device includes an evaluation value calculation processor that calculates, for each of two or more types of output modes, an evaluation value of output image data when image data is output in the output mode, and an evaluation information transmitter that transmits evaluation information including information based on the evaluation value for each of the output modes, to the terminal device, via the transmission and reception device. The terminal device includes a display controller that performs control of displaying, for each of the output modes, the information based on the evaluation value corresponding to the output mode, on the display device, if the evaluation information is received.

Abstract: An image processing apparatus processes input image data and generates output image data. The image processing apparatus includes a feature-value calculating unit, an output-gradation-number setting unit, and an image processor. The feature-value calculating unit calculates a feature value from the input image data. The output-gradation-number setting unit sets, as the number of output gradations, any one gradation number of candidates for the number of output gradations based on the feature value calculated by the feature-value calculating unit. The image processor processes the input image data and generates the output image data having the number of output gradations which is set by the output-gradation-number setting unit.

Abstract: To provide an image processing device including a generator that generates output image data from input image data, a calculation processor that calculates an evaluation value indicating a degree of information loss of the output image data, a determiner that compares the evaluation value with a predetermined threshold value and determines a magnitude of the degree of information loss, and a display that displays information in accordance with a determination result by the determiner.

Abstract: An image processing apparatus processes input image data and generates output image data. The image processing apparatus includes a feature-value calculating unit, an output-gradation-number setting unit, and an image processor. The feature-value calculating unit calculates a feature value from the input image data. The output-gradation-number setting unit sets, as the number of output gradations, any one gradation number of candidates for the number of output gradations based on the feature value calculated by the feature-value calculating unit. The image processor processes the input image data and generates the output image data having the number of output gradations which is set by the output-gradation-number setting unit.

Abstract: A determining apparatus of the present invention includes: a feature extracting section configured to extract, as a feature from at least one captured image, at least one piece of information on the at least one captured image out of (i) a piece of information on a blur, (ii) a piece of information on a skew, and (iii) a piece of information on an image type; and a captured image determining section configured to determine whether or not the at least one captured image is suitable for conversion into a compressed image in a platform independent file format, by determining whether or not the extracted feature satisfies a given condition.

Abstract: An image determining apparatus of the present invention includes an image type determining section (81) which determines whether an image is a scanned image or a captured image; and a compact PDF file generation determining section (82) which (a) extracts (i) a feature regarding a resolution from the scanned image or (ii) a feature regarding a blur from the captured image and (b) determines, on the basis of the extracted feature, whether or not the image is suitable for the conversion.

Abstract: A determining apparatus of the present invention includes: a feature extracting section configured to extract, as a feature from at least one captured image, at least one piece of information on the at least one captured image out of (i) a piece of information on a blur, (ii) a piece of information on a skew, and (iii) a piece of information on an image type; and a captured image determining section configured to determine whether or not the at least one captured image is suitable for conversion into a compressed image in a platform independent file format, by determining whether or not the extracted feature satisfies a given condition.

Abstract: An image determining apparatus of the present invention includes an image type determining section (81) which determines whether an image is a scanned image or a captured image; and a compact PDF file generation determining section (82) which (a) extracts (i) a feature regarding a resolution from the scanned image or (ii) a feature regarding a blur from the captured image and (b) determines, on the basis of the extracted feature, whether or not the image is suitable for the conversion.

Abstract: A captured image processing system is provided. The captured image processing system includes a portable terminal apparatus and an image output apparatus, each of which are communicable with the other. The portable terminal apparatus captures an image of an object and transmits output target image data obtained by capturing the image to the image output apparatus so as to cause output of this captured image from the image output apparatus. The image output apparatus carries out image processing to the received output target image data, and outputs (a) corrected image data, or (b) an image indicated by the corrected image data. The captured image processing system allows easy output of necessary regions included in an image captured by the portable terminal apparatus, and allows output of an image having no geometric distortion even if image capture is carried out obliquely with respect to a captured image object.

Abstract: A captured image processing system includes: a designation information accepting section for accepting designation information indicative of a location of a designated region in a captured image; a region determination section for determining an output target region in the captured image based on the designation information; and a corrected data preparation section for (i) obtaining a mapping for converting (a) coordinates of pixels in a quadrangle-shaped region having four edge pixel groups, detected in the captured image, serving as sides of the quadrangle-shaped region, the four edge pixel groups each being in a form of a line segment to (b) coordinates of pixels in a rectangular region of a given size and having upper and lower sides of the rectangular region being substantially parallel in a horizontal direction, and (ii) preparing corrected image data with respect to image data corresponding to the output target region in the captured image data, which corrected image data has been subjected to coordina

Abstract: The present image forming device is provided with a toner carrier and a counter electrode opposite the toner carrier. Between the toner carrier and the counter electrode is provided a jet control section having a plurality of gates, each forming a space for passage of a jet of toner. Also provided is a control electrode driver, which is capable of applying potentials independently to each gate of the jet control section. The present image forming device forms a toner image on a transfer material by controlling passage of toner through a given gate by application of an ON potential which allows passage of the toner through the gate and an OFF potential which prevents passage of the toner through the gate. A potential difference VH between the toner carrier and the counter electrode and an intensity EH of an electrical field in the vicinity of the counter electrode satisfy VH≦1.5 kV and EH≧1.8 kV/mm, respectively.

Abstract: An image forming apparatus capable of forming an image with uniform density includes a toner carrier for carrying a toner, an opposing electrode arranged opposing to the toner carrier, a high voltage power supply unit for supplying a voltage to generate a potential difference between the toner carrier and the opposing electrode, a control electrode including a plurality of electrodes arranged between the toner carrier and the opposing electrode, and a control power supply unit for implementing a plurality of potential states at respective ones of the electrodes of the control electrode, controlling passage of the toner through a passage portion, and for forming an image on a surface of a recording medium conveyed over the opposing electrode.