Image forming device, image processing device and image producing program
First Claim
1. An image forming apparatus, comprising:
- a luminance information acquiring portion adapted for acquiring luminance information of pixels forming an image;
a color information acquiring portion adapted for acquiring color information of pixels forming the image;
a region discriminating portion adapted for discriminating on the image a specific region and a peripheral region adjacent to said specific region based on the acquired luminance information and color information;
a luminance information correcting portion adapted for executing a correction of said luminance information of pixels in said specific region or said peripheral region based on a predetermined correction rule corresponding to said specific region or the peripheral region and further corresponding to said color information of the pixels; and
a monochromatic image producing portion adapted for producing a monochromatic image reflecting a correction content of said luminance information based on said image.
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Abstract
The present invention provides a technology by which a fairly good monochromatic image without any picture quality deterioration can be obtained from a color image original. An image forming apparatus according to the present invention comprises: a luminance information acquiring portion adapted for acquiring luminance information of pixels forming an image; a color information acquiring portion adapted for acquiring color information of pixels forming the image; a region discriminating portion adapted for discriminating on the image a specific region and a peripheral region adjacent to said specific region based on the acquired luminance information and color information; a luminance information correcting portion adapted for executing a correction of said luminance information of pixels in said specific region or said peripheral region based on a predetermined correction rule corresponding to said specific region or the peripheral region and further corresponding to said color information of the pixels; and a monochromatic image producing portion adapted for producing a monochromatic image reflecting a correction content of said luminance information based on said image.
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Citations
20 Claims
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1. An image forming apparatus, comprising:
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a luminance information acquiring portion adapted for acquiring luminance information of pixels forming an image;
a color information acquiring portion adapted for acquiring color information of pixels forming the image;
a region discriminating portion adapted for discriminating on the image a specific region and a peripheral region adjacent to said specific region based on the acquired luminance information and color information;
a luminance information correcting portion adapted for executing a correction of said luminance information of pixels in said specific region or said peripheral region based on a predetermined correction rule corresponding to said specific region or the peripheral region and further corresponding to said color information of the pixels; and
a monochromatic image producing portion adapted for producing a monochromatic image reflecting a correction content of said luminance information based on said image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An image producing program that is executed by a computer, comprising:
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(luminance information acquisition step) for acquiring luminance information of pixels forming an image;
(color information acquisition step) for acquiring color information of pixels forming the image;
(region discrimination step) for based on said luminance information and said color information, discriminating on said image a specific region and a peripheral region adjacent to said specific region;
(luminance information correction step) for executing correction of said luminance information of pixels in said specific region or said peripheral region based on a predetermined correction rule corresponding to said specific region or the peripheral region and further corresponding to said color information of the pixels; and
(monochromatic image producing portion) for based on said image, producing a mono chromatic image reflecting a correction content of said luminance information. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification