Image conversion

About: Image conversion is a research topic. Over the lifetime, 2490 publications have been published within this topic receiving 19077 citations.

Image processor, its method, and its program

Abstract: PROBLEM TO BE SOLVED: To generate an image signal whose slanting line is smoothly reproduced when IP (interlace progressive) conversion is applied to it. SOLUTION: An input part 81 inputs an image, as an input image, whose noted line is thinned out. A class classification part 84 classifies each picture element that composes a noted line in an image, as an output image, where the thinning of a noted line is not made. An identical class determination part 86 computes intervals M and N showing a positional relationship between a set of picture element groups classified into a class identical with noted picture elements of a noted line and the noted picture elements. A class sorting part 87 sorts noted picture elements into classes based on the intervals M and N. A product-sum operation part 91 performs forecasting calculation on the noted picture elements using forecasting coefficients identified based on respective classes of noted picture elements classified by the class classification part 84 and class sorting part 87 and a forecasting tap in the input images having a predefined positional relationship with the noted picture elements, thus outputting an output image as a forecasting calculation result. The invention is applicable to image conversion equipment. COPYRIGHT: (C)2010,JPO&INPIT

Image display device and image display method, and image display program

Abstract: PROBLEM TO BE SOLVED: To display an image at high speed with a short waiting time by reducing loads on image conversion processing in an image transmitter to improve performance of the whole system and by suppressing a time spent until the image is displayed. SOLUTION: An image display device 120 acquires image data information about image data of a plurality of different resolutions which an image transmitter 110 can transmit in association with an image content. Then, the image display device calculates a required time for performing conversion of an image by the image transmitter from a sum of a time for image conversion processing required by image conversion processing related to a change in resolution in the image transmitter and data size/data transmission speed of the image data after the image conversion, calculates a required time for performing conversion of an image by the image display device from a sum of the data size/data transmission speed of original image data and the time for image conversion processing when the original image data are image converted by the image display device, and requests image data of a shorter required time of the image transmitter. COPYRIGHT: (C)2009,JPO&INPIT

Image conversion device, image formation apparatus, image formation system, and producing method

Abstract: PROBLEM TO BE SOLVED: To reduce a density change of a printed image in a joint part and to improve image quality.SOLUTION: An image conversion device for converting image data per image unit output by being scanned by one or a plurality of recording heads includes an image data conversion unit that converts the image data so as to be able to form each pixel that forms a region in which end portions of the recording heads overlap in a case of scanning the image data so that the end portions of the recording heads overlap or that forms a region in which the end portions of the two adjacent recording heads overlap each other in a case in which the end portions of the two recording heads overlap each other by discharging ink at least twice using different nozzles.

Image conversion method and image conversion device

Abstract: PROBLEM TO BE SOLVED: To solve the problem that it is impossible to quickly display a color image in a limited color in an image display device for displaying a color image in a limited color by using a color pallet whose color is preliminarily determined SOLUTION: This image conversion method comprises a step for dividing the extent of the possible value of the color information of a pallet into a plurality of extents which are not overlapped with each other, and for associating the representative value of one corresponding color information with each extent, and for arraying the representative values of the extents of the color information according to a predetermined rule, and for using a conversion table in which corresponding index information is assigned to each representative value to check which of the index information is the color information of the fetched image equivalent to and a step for outputting the representative value of the color information corresponding to the index information calculated by the step as a pixel value corresponding to the first pixel COPYRIGHT: (C)2006,JPO&NCIPI

Image conversion method

Abstract: The invention belongs to the technical field of image conversion and compression, and discloses an image conversion method. The image conversion method comprises the following steps: 101: analyzing an original color image to obtain the color information of all information contents in the image; 102: carrying out weighted processing on the color information, and converting the weighted color image into a grayscale image; 103: analyzing the grayscale image to obtain the resolution of the grayscale image, obtaining an adaptive local range under the resolution, and determining the size of an area impact factor; and 104: traversing the whole image according to the size of the area impact factor, and converting the image into a black-and-white image through an adaptive image binaryzation method with a limited range. By use of the method, the image is clearer after being converted, and is easy in optical recognition.