摘要:
A solid area and edges are detected from original data to be printed. An arbitrary raster of the solid area is shifted by a unit of dot-to-dot distance corresponding to a resolution having twice the dot density of the resolution of the original data, while preserving the data representing the edges so that the edges remain unchanged. Printing is performed on the basis of the above shifted data. The shifting of the dot data prevents the generation of mist and makes it possible to print a high-quality image at a high speed. Thus, the invention provides a printing method and apparatus capable of forming a high-quality image at a high speed.
摘要:
The present invention relates to an image processing apparatus and method and, more particularly to a technique which controls color correction in accordance with the features of an input image. Especially when the input image is a specific value, the present invention speeds up the process, and improves the color reproducibility without performing color correction.
摘要:
An image-forming element comprises a transparent base film, an aluminum film deposited on the base film, and a photosensitive layer formed on the aluminum film and which can be developed with an alkali aqueous solution developer. The photosensitive layer comprises of (a) 20 to 60% by weight of a copolymer of a vinyl toluene and a monoester of an unsaturated dibasic acid, (b) 10 to 70% by weight of an addition-polymerizable, ethylenically unsaturated monomer which is an acrylate or a methacrylate of a fatty polyhydroxy alcohol having at least two terminal ethylene groups and at least one hydroxyl groups, and (c) 0.5 to 30% by weight of a photopolymerization initiator.
摘要:
For M (magenta) and C (cyan), in a case of generating, e.g., ternary data of C0 to C2 and M0 to M2 respectively by using a look-up table on the basis of an error diffusion method, in a highlight portion of input M and C data (to which errors Ce and Me have been added respectively), a conversion space of correlating these data is used, while in a high-density portion, a conversion space equivalent to ordinary error diffusion is used. Thus, in a case of converting multivalued color image data into data of a lesser number of bits than the number of bits of color components constituting the multivalued color image data, it is possible to maintain excellent tonality on the entire image, and particularly to control graininess by preventing image quality deterioration in the highlight area.
摘要:
An image processor which improves the reproducibility of the color blue, includes an input device which inputs color image data, and a color correction device which performs color correction of the input color image data based on color correction parameters. An output device outputs the color corrected input image data to an image forming device that forms an image by using recording materials corresponding to a plurality of colors including magenta and cyan. The color correction device decreases the amount of magenta used for image formation, and uses the color correction parameters to suppress the elimination of gradation in a color zone formed by cyan.
摘要:
An image processor converts an input signal into first and second color components and a component. A plurality of output device dependent color-component data is read from a look-up table on the basis of the first and second color components and the brightness component. Interpolation processing is performed on the basis of the read plurality of color component data to generate output device dependent color-component data corresponding to the input signal.
摘要:
An image processing apparatus is constructed by a C signal multi-level forming circuit, an M signal multi-level forming circuit, and a Y signal multi-level forming circuit for receiving multi-level color image data and multi-level black image data of a low resolution, converting the inputted multi-level color image data into data of at least three levels consisting of two bits, and converting into data of a higher resolution than the input data; a K signal binarization circuit and a smoothing processing unit for converting the inputted black image data into the binary data and converting into data of a higher resolution than the input data by a smoothing process, and a print unit for forming a color image on the basis of the binary C, M, Y and K data converted into the high resolution data. The multi-level color data and black image data are doubled and a multi-level memory to store the doubled data is unnecessary. The recording can be performed at a high resolution.
摘要:
An image processing apparatus comprises an inputting unit for inputting image data, a processing unit for quantizing the image data, and a distributing unit for weighting error data which occurs at the time of the quantizing process and for distributing the error data to a plurality of image data, wherein the distributing unit sets a value of a round error which occurs by the weighting process to a value which lies within a range from 0 to less than 1.
摘要:
A video data processing system includes a CPU, a video memory, video data shift registers, a ternary counter, an octal counter, a blanking counter, and a flip-flop. Video data is shifted in the shift registers in response to an output from the ternary counter. The outputs from the ternary counter are counted by the octal counter, and an output from the octal counter is counted by the blanking counter so as to count down a blanking parameter. A borrow output from the blanking sets the flip-flop to hold video data which is then stored in the video memory. This operation is repeated up to the last H along the main scanning direction. The initial value of the blanking parameter is incremented by one by one to repeat main scanning inputs along a subscanning direction.
摘要:
There are provided a pattern generating method and apparatus for generating a character/symbol pattern. The apparatus comprises a font memory to store outline font data of characters, symbols, and the like, an image memory to store image data based on the outline font data stored in the font memory, storing means for storing the font image based on the outline font data into the image memory, a color data generating circuit to generate color data in accordance with the designated color information, and a painting circuit to paint the inside of the stored font image by the color data. The color data generating circuit executes a masking operation on the basis of the color information which was designated and input and generates the color data. Thus an accurate color image can be reproduced.