Abstract: Disclosed is an image processing apparatus including: an edge classification section for distinguishing an edge pattern of an edge to be included in an expanded image of a compressed image and classifying the edge by using the distinguished edge pattern, wherein the edge classification section distinguishes the edge pattern by using identification data assigned to each of the pixels of the compressed image, the identification data indicating a half tone region or a high resolution region with respect to each of the pixels, and quantized data of each of the pixels.

Abstract: Disclosed is an image processing apparatus including: an image compression conversion unit that, in an event of quantizing an image having attribute data for each pixel, creates a density pattern in which pixel values of plural pixels composing a region as a quantization target are binarized, quantizes the region based on the density pattern, and binarizes, for each pixel, the attribute data individually owned by the plural pixels composing the region; and an image extension conversion unit that, in an event of decoding the image of the region quantized based on the density pattern by the image compression conversion unit, decides a density pattern of the region before the quantization in response to an attribute pattern that is based on the binarized attribute data of each of the plural pixels composing the region, and decodes the region in response to the decided density pattern.

Abstract: An image forming device includes: a rasterizing section, a resolution converting section and a thinning section. The rasterizing section generates, by rasterization, image data having any one of standard resolution, resolution higher than the standard resolution and resolution lower than the standard resolution. The resolution converting section converts the resolution upon rasterization for the generated image data having the higher or lower resolution than the standard resolution into the standard resolution. The thinning section thins the image data having the standard resolution. When thinning the image data of which the resolution is converted higher than upon rasterization in the resolution converting section, the thinning section adjusts thinning strength to become larger upon thinning than when thinning the image data of which the resolution upon rasterization is kept as it is.

Abstract: Disclosed is an image processing apparatus comprising an image compression conversion unit to quantize an image having attribute data for each pixel, wherein when a region has the attribute data of a photographic image, the image compression conversion unit quantizes the region by a BTC method, wherein when a region has the attribute data of other than the photographic image, and the region is a halftone region, the image compression conversion unit quantizes the region by the BTC method, and wherein when a region has the attribute data of other than the photographic image, and the region is a high resolution region, the image compression conversion unit generates a density pattern for the region to quantize the region according to the generated density pattern.

Abstract: Provided is an image processing device including: an outline detection unit which analyzes image data to detect an outer edge pixel forming the outline of image, and to determine an edge direction of the outer edge pixel; a thinning unit which processes thinning by reducing a pixel value of the outer edge pixel; and an outline adjusting unit. The outline adjusting unit determines a correction value of front end fading to be adopted to the outer edge pixel, depending on sheet-feeding direction when the image data is printed and the edge direction of the outer edge pixel; reduces the correction value of front end fading, depending on the ratio of reduction by the thinning of the pixel value of the outer edge pixel; and corrects the front end fading by adding the reduced correction value to the pixel value of the outer edge pixel.

Abstract: Disclosed is an image processing apparatus including: an image compression conversion unit that, in an event of quantizing an image having attribute data for each pixel, creates a density pattern in which pixel values of plural pixels composing a region as a quantization target are binarized, quantizes the region based on the density pattern, and binarizes, for each pixel, the attribute data individually owned by the plural pixels composing the region; and an image extension conversion unit that, in an event of decoding the image of the region quantized based on the density pattern by the image compression conversion unit, decides a density pattern of the region before the quantization in response to an attribute pattern that is based on the binarized attribute data of each of the plural pixels composing the region, and decodes the region in response to the decided density pattern.

Abstract: In a compression method of quantizing and compressing image data of an image, the method comprises the steps of: determining a method of quantization for each pixel; quantizing the image data in pixel unit according to the determined quantization method; storing the quantized image data in a same region of a memory in spite of the quantization method; and storing discrimination data for discriminating the quantization method used for quantizing the image data by corresponding to the quantized image data in the memory.

Abstract: An image forming apparatus for forming an image according to a specified printing time, including: an image forming condition setting unit for setting an image forming condition including an information related to the specified printing time and an information related to recording material; a control unit adapted to calculate a recording material acquisition startup time for starting to acquire a recording material based on the image forming condition set by the image forming condition setting unit, and adapted to issue a warning related to a replenishment of the recording material, and/or to inhibit formation of image, after the recording material acquisition startup time, in the case where there is no recording material specified under the image forming condition or in the case where the recording material is insufficient.

Abstract: An image processing apparatus including: a contour extraction unit that extracts a contour pixel; a screen processing unit that sets a screen threshold matrix composed of a plurality of components each of which stores a threshold value, performs a screen process to input image data, and outputs processed image data; a screen dot determination unit that sets a dot output determination threshold matrix, and determines whether the screen dot is output to a first pixel or a second pixel around the first pixel; and a contour processing unit that outputs a pixel value of the processed image data to the contour pixel when the screen dot is output to the contour pixel or a pixel around the contour pixel, and outputs a contone pixel value to the contour pixel when the screen dot is not output to the contour pixel or the pixel around the contour pixel.

Abstract: An image forming apparatus to carry out image forming on a recording medium by adding a specific pattern to image data inputted, having a mask creation section to create a mask area where addition of the specific pattern is prohibited and a control section to carry out image forming in a way that addition of the specific pattern is prohibited in the mask area.

Abstract: Disclosed is an image forming apparatus including: an image forming section to write a latent image, and to develop the latent image to form an image; a misalignment detecting section to detect misalignment amount of a sheet in the main scanning direction on a sheet conveying path to the image forming section; a storage section to store the misalignment amount; a density measuring section to measure density of a plurality of preset positions and to generate measurement data; and a control section to adjust a writing position on the image carrier; to allow the image forming section to output the sheet on which a density measuring image is formed; and to convert the position on the sheet of the measurement data to the writing position on the image carrier and to generate correction data; and a density unevenness correcting section to correct the density of the image.

Abstract: A person verification apparatus having: a biological information input section to receive an input of biological information of a person and to obtain a data of the biological information as a data to be verified; an ID input section to receive an input of ID of a person; and a control section to compare the data to be verified with plural pieces of referential data registered in advance, and to obtain referential data corresponding to the ID received by the ID input section and compare whether the referential data corresponding to the ID matches with the data to be verified when the data to be verified does not match with the plural referential data.

Abstract: Disclosed is an image processing apparatus comprising an image compression conversion unit to quantize an image having attribute data for each pixel, wherein when a region has the attribute data of a photographic image, the image compression conversion unit quantizes the region by a BTC method, wherein when a region has the attribute data of other than the photographic image, and the region is a halftone region, the image compression conversion unit quantizes the region by the BTC method, and wherein when a region has the attribute data of other than the photographic image, and the region is a high resolution region, the image compression conversion unit generates a density pattern for the region to quantize the region according to the generated density pattern.

Abstract: Disclosed is an image processing apparatus including: an edge classification section for distinguishing an edge pattern of an edge to be included in an expanded image of a compressed image and classifying the edge by using the distinguished edge pattern, wherein the edge classification section distinguishes the edge pattern by using identification data assigned to each of the pixels of the compressed image, the identification data indicating a half tone region or a high resolution region with respect to each of the pixels, and quantized data of each of the pixels.

Abstract: In a compression method of quantizing and compressing image data of an image, the method comprises the steps of: determining a method of quantization for each pixel; quantizing the image data in pixel unit according to the determined quantization method; storing the quantized image data in a same region of a memory in spite of the quantization method; and storing discrimination data for discriminating the quantization method used for quantizing the image data by corresponding to the quantized image data in the memory.

Abstract: An image forming apparatus to carry out image forming on a recording medium by adding a specific pattern to image data inputted, having a mask creation section to create a mask area where addition of the specific pattern is prohibited and a control section to carry out image forming in a way that addition of the specific pattern is prohibited in the mask area.

Abstract: An image forming apparatus for forming an image according to a specified printing time, including: an image forming condition setting unit for setting an image forming condition including an information related to the specified printing time and an information related to recording material; a control unit adapted to calculate a recording material acquisition startup time for starting to acquire a recording material based on the image forming condition set by the image forming condition setting unit, and adapted to issue a warning related to a replenishment of the recording material, and/or to inhibit formation of image, after the recording material acquisition startup time, in the case where there is no recording material specified under the image forming condition or in the case where the recording material is insufficient.

Abstract: A printing device capable of printing for which a user who receives a printed matter is specified, the printing device comprising: an authentication section which identifies a user who approaches the printing device; and a notification controller which causes a notifying section to make a notification of prescribed information when a job to be outputted for the identified user is registered.

Abstract: A user authentication method including the steps of: accepting input of biological information; displaying a user authentication screen in which a user name corresponding to the biological information and a part of a password corresponding to the user name are automatically entered; and accepting input for completing the password, the part of which have been automatically entered.

Abstract: Disclosed is a user interface apparatus to be utilized in an image reading apparatus for forming image data by reading an original image. The user interface apparatus comprises: a setting section for setting a condition of reading the original image; and an instruction section for instructing start of reading the original image according to the condition of reading having been set by the setting section, wherein the setting section is provided with a selecting section for selecting whether to imprint a time stamp to the digital data formed by reading the original image.