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US 6,307,972 B1Granted
Method and apparatus for generating a bitmap
AssigneeFujifilm Electronic Imaging Ltd.
InventorsAndrew James Riley, Martin Philip Gouch
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AssigneeFujifilm Electronic Imaging Ltd.
InventorsAndrew James Riley, Martin Philip Gouch
Estimating the term…
A method of generating a bitmap representative of an original image. The method comprises (1) scanning the original image to generate a greyscale pixel map; (2) interpolating and rotating the greyscale pixel map to generate a higher resolution greyscale pixel map; and (3) converting the higher resolution greyscale pixel map into the bitmap. The greyscale pixel map is converted into the bitmap by (I) ranking each greyscale pixel value against the greyscale pixel values of a neighborhood of adjacent pixel locations; (ii) determining a desired number of black binary pixels (B_Pc) in the neighborhood; (iii) comparing the rank of the greyscale pixel with the desired number of black binary pixels; and (iv) assigning a black binary pixel value to the pixel location when the comparison carried out in step (iii) satisfies a predetermined condition.
A method of generating a bitmap representative of an original image, said bitmap comprising a plurality of white/black binary pixel values each having a respective pixel location, the method comprising
Apparatus for generating a bitmap representative of an original image, said bitmap comprising a plurality of white/black binary pixel values each having a respective pixel location, the apparatus comprising
Dependencies are inferred from the claim text.