Method and an apparatus for copying retouch in electronic color picture reproduction
First Claim
1. A method for copying retouch of a color image by transferring image information from a read image region of a color image to a write image region of said color image in electronic color image reproduction, wherein original color signals are obtained by scanning of the color image, the original color signals are converted into color values for a plurality of different color components of the color signals, and the color values are stored in a storage medium image-point-by-image-point, comprising the steps of:
- (a) marking an image point as a read point within the read image region of the color image to be retouched, said read image region defining a portion of said color image from which image information is to be taken;
(b) marking an image point as a write point within the write image region of the color image to be retouched, said write image region defining a portion of said color image into which the image information taken from said read image region is to be transferred;
(c) identifying coordinates of said marked read point and said marked write point;
(d) determining a vector distance between said read point and said write point from said identified coordinates of the read point and the write point;
(e) marking the write region in terms of size and shape so as to mark additional image points within the write image region and identifying the coordinates of said additional image points;
(f) determining coordinates of corresponding additional image points within said read image region from the coordinates of said additional image points within said write image region, said corresponding additional image points within said read image region being in each case spaced from said additional image points within said write image region by said determined vector distance;
(g) generating for at least one of the color components of the image points marked within said write image region substitution color values related to the original color values of the corresponding image points within said read image region; and
(h) replacing said original color values of the image points within said write image region by said substitution color values to obtain a retouched color image within the write image region, whereby a desired copying retouch of the color image is achieved.
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Accused Products
Abstract
In a method for copying retouch in color picture reproduction, color values are initially acquired by image-point-by-image-point trichromatic color picture scanning and digitization. The color values are deposited in a storage medium and are addressable by image point coordinates. With the coordinate pen of a coordinate acquisition means, the retoucher first marks a read point within a first image region from which a pattern is to be taken and a write point within a second image region into which the pattern is to be copied with image point precision. A distance between the read and write points is determined from the acquired image point coordinates and is fixed. The retoucher then acquires all image point coordinates within the first image region with the assistance of a coordinate pen. The image point coordinates of those image points within the second image region exhibiting the respective fixed distance from the acquired image points are simultaneously identified and a double coordinate pen is thus simulated. For precise pattern transfer, the color values of the first image region addressed with the assistance of the double coordinate pen are replaced image-point-by-image-point by the simultaneously addressed color values of the second image region or by values calculated from the color values.
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Citations
18 Claims
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1. A method for copying retouch of a color image by transferring image information from a read image region of a color image to a write image region of said color image in electronic color image reproduction, wherein original color signals are obtained by scanning of the color image, the original color signals are converted into color values for a plurality of different color components of the color signals, and the color values are stored in a storage medium image-point-by-image-point, comprising the steps of:
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(a) marking an image point as a read point within the read image region of the color image to be retouched, said read image region defining a portion of said color image from which image information is to be taken; (b) marking an image point as a write point within the write image region of the color image to be retouched, said write image region defining a portion of said color image into which the image information taken from said read image region is to be transferred; (c) identifying coordinates of said marked read point and said marked write point; (d) determining a vector distance between said read point and said write point from said identified coordinates of the read point and the write point; (e) marking the write region in terms of size and shape so as to mark additional image points within the write image region and identifying the coordinates of said additional image points; (f) determining coordinates of corresponding additional image points within said read image region from the coordinates of said additional image points within said write image region, said corresponding additional image points within said read image region being in each case spaced from said additional image points within said write image region by said determined vector distance; (g) generating for at least one of the color components of the image points marked within said write image region substitution color values related to the original color values of the corresponding image points within said read image region; and (h) replacing said original color values of the image points within said write image region by said substitution color values to obtain a retouched color image within the write image region, whereby a desired copying retouch of the color image is achieved.
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2. A method for copying retouch of a color image by transferring image information from a read image region of a color image to a write image region of said color image in electronic color image reproduction, wherein original color signals are obtained by image-point-by-image-point and trichromatic scanning of the color image, the original color signals are converted into digital original color values for a plurality of different color components of the color signals, the digital original color values are stored in a storage medium image-point-by-image-point and wherein coordinates of selected image points in said color image are identified with a movable marker and an associated coordinate identification means, said identified coordinates of the selected image points addressing corresponding digital color values of said selected image points in said storage medium, comprising the steps of:
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(a) marking an image point with the marker as a read point within the read image region of the color image to be retouched, said read image region defining a portion of said color image from which image information is to be taken; (b) marking an image point as a write point within the write image region of the color image to be retouched, said write image region defining a portion of said color image into which the image information taken from said read imge region is to be transferred; (c) identifying coordinates of said marked read point and said marked write point; (d) determining a vector distance between said read point and said write point from said identified coordinates of the read point and the write point; (e) marking the write region in terms of size and shape by guiding the marker in adjacent strokes like a retouch brush so as to mark additional image points within the write image region, and identifying the coordinates of said additional image points; (f) substantially simultaneously determining coordinates of corresponding additional image points within said read image region from the coordinates of said additional image points within said write image region, said corresponding additional image points within said read image region being in each case spaced from said additional image points within said write image region by said determined vector distance; (g) generating for at least one of the color components of the image points marked within said write image region digital substitution color values related to the digital color values of the corresponding image points within said read image region; and (h) replacing said digital original color values of the image points within said write image region by said digital substitution color values to obtain a retouched color image within the write image region, whereby a desired copying retouch of the color image is achieved. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for copying retouch of a color image by transferring image information from a read image region of a color image to a write image region of said color image in electronic color image reproduction, wherein original color signals are obtained by image-point-by-image-point and trichromatic scanning of the color image, the original color signals are converted into digital original color values for a plurality of different color components of the color signals, and the digital original color values are stored in a storage medium image-point-by-image-point, comprising:
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(a) a movable marker means for marking an image point as a read point within the read image region of the color image to be retouched, and for marking an image point as a write point within the write image region of the color image to be retouched; (b) coordinate identification means for identifying coordinates of said marked read point and said marked write point; (c) means for determining a vector distance between said read point and said write point from said identified coordinates; (d) said movable marker means also for marking additional image points within said write image region and said coordinate identification means also identifying coordinates of said additional marked image points; (e) means for determining coordinates of corresponding additional image points within said read image region from the coordinates of said additional image points within said write image region, such that the spacing between each of the additional image points within said write image region and the corresponding additional image points within said read image region is said determined vector distance; (f) means for generating for at least one of the color components of the image points marked within said write image region digital substitution color values related to the digital original color values of the corresponding image points within said read image region; and (g) means for replacing said digital original color values of the image points within said write image region by said digital substitution color values to obtain a retouched color image within the write image region, whereby a desired copying retouch of the color image is achieved. - View Dependent Claims (16, 17, 18)
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Specification