摘要:
The image densities of images formed with a plurality of laser beams on the basis of image data are measured. The quantity of each of the plurality of laser beams is adjusted in accordance with the measurement result.
摘要:
The image densities of images formed with a plurality of laser beams on the basis of image data are measured. The quantity of each of the plurality of laser beams is adjusted in accordance with the measurement result.
摘要:
This invention obtains a high-quality output image in which a jaggy or a disconnection of a thin line hardly stands out. An edge detection unit detects whether the pixel of interest is an edge pixel or a non-edge pixel. A screen processing unit performs screen processing for the pixel of interest to determine the output value of the N-level tone. A calculation unit performs filtering processing having a preset visual sense characteristic for an area including the pixel of interest to calculate the target value of the pixel of interest, and corrects the value of the pixel of interest so as to come close to the target value, thereby determining the output value of the N-level tone. The selector selects, according to the detection result by the edge detection unit, either the result from the calculation unit or that from the screen processing unit.
摘要:
This invention obtains a high-quality output image in which a jaggy or a disconnection of a thin line hardly stands out. An edge detection unit detects whether the pixel of interest is an edge pixel or a non-edge pixel. A screen processing unit performs screen processing for the pixel of interest to determine the output value of the N-level tone. A calculation unit performs filtering processing having a preset visual sense characteristic for an area including the pixel of interest to calculate the target value of the pixel of interest, and corrects the value of the pixel of interest so as to come close to the target value, thereby determining the output value of the N-level tone. The selector selects, according to the detection result by the edge detection unit, either the result from the calculation unit or that from the screen processing unit.
摘要:
An image processing apparatus includes an emitter which has a plurality of light emitting devices arranged in a sub-scan direction, and a former which forms an image on a photosensitive member by multi-passed scanning an identical region on the photosensitive member in a main scan direction using light beams output from the respective light emitting devices of the emitter. An input section inputs image data of an image to be formed by the image processing apparatus. A divider divides the input image data into image data for respective scans in the multi-passed scans using a mask pattern generated based on amounts of deviations from scan lines of the light beams output by the respective light emitting devices of the emitter. A supplier supplies the divided image data to the emitter in accordance with scans of the former.
摘要:
An image processing apparatus includes an emitter which has a plurality of light emitting devices arranged in a sub-scan direction, and a former which forms an image on a photosensitive member by multi-passed scanning an identical region on the photosensitive member in a main scan direction using light beams output from the respective light emitting devices of the emitter. An input section inputs image data of an image to be formed by the image processing apparatus. A divider divides the input image data into image data for respective scans in the multi-passed scans using a mask pattern generated based on amounts of deviations from scan lines of the light beams output by the respective light emitting devices of the emitter. A supplier supplies the divided image data to the emitter in accordance with scans of the former.
摘要:
An image forming apparatus which forms an output image using a transparent colorant and a colored colorant, the apparatus comprises: a formation unit configured to form an adjustment pattern image using the transparent colorant and the colored colorant; an acquisition unit configured to acquire a density value in the formed pattern image; and a calculation unit configured to calculate, based on the acquired density value, a misalignment amount of the transparent colorant with respect to the colored colorant, wherein in the formed pattern image, the area with the transparent colorant are repetitively arranged at first intervals, and the area with the colored colorant are repetitively arranged at second intervals.