Image processing method, storage medium, image forming apparatus and program with correction processing according to an attribute of an image
AssigneeCanon Kabushiki Kaisha
InventorYoshinari Ohnishi
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Abstract
The present invention aims to enable image attribute discrimination of an image indicative of compressed data, and hence correction processing on the image indicative of the compressed data. In attaining this aim, the compressed data are developed into a bit map by a method corresponding to the analysis results so that the correction processing will be performed on the bit map according to the identified attribute.
Claims12
An image processing method for performing correction processing according to an attribute of an image, comprising the steps of:
- analyzing whether compressed data contained in a drawing instruction corresponds to an image attribute, a text attribute or a graphics attribute by discriminating a format of the compressed data;
- developing the compressed data to a bit map using a method corresponding to an analysis result obtained in said analyzing step;
- and
- performing correction processing on the bit map according to the attribute identified on the basis of the analysis result.
A storage medium on which a program for implementing an image processing method is recorded so that correction processing is performed according to an attribute of an image, the method comprising the steps of:
- analyzing whether compressed data contained in a drawing instruction corresponds to an image attribute, a text attribute or a graphics attribute by discriminating a format of the compressed data;
- developing the compressed data to a bit map using a method corresponding to an analysis result obtained in said analyzing step;
- and
- performing correction processing on the bit map according to the attribute identified on the basis of the analysis result.
An image forming apparatus for performing correction processing according to an attribute of an image, comprising:
- analysis means for analyzing whether compressed data contained in a drawing instruction corresponds to an image attribute, a text attribute or a graphics attribute by discriminating a format of the compressed data;
- developing means for developing the compressed data to a bit map using a method corresponding to an analysis result obtained by said analysis means;
- and
- correcting processing means for performing correction processing on the bit map according to the attribute identified on the basis of the analysis result.
Dependencies are inferred from the claim text.