| 摘要 |
The present invention relates to an image processing apparatus comprising: mode-setup means (70) for designating an image processing mode, determining means (72) for determining, in a two dimensional image and within a neighborhood centered at an observed pixel, one or more target pixels in accordance with said designated image processing mode, comparing means (72) for judging whether the density of said observed pixel is equal to or less than a predetermined density level lying between a maximum density level and a zero density level; and converting means (72) for converting the density of said one or more target pixels based on the results obtained by the comparing means (72), said converting being prohibited if the density of said observed pixel has been judged to be equal to or less than said predetermined density level.
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