Image forming apparatus and method
AssigneeSamsung Electronics Co., Ltd.
InventorsJeong-hwan Cho, Ki-min Kang
Life of this patent
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Abstract
An image forming apparatus and an image forming method thereof are provided. An image forming apparatus according to an exemplary embodiment of the present general inventive concept comprises a decoder to decode a compressed image to convert the compressed image into image data, a pure black determining unit to determine whether the image data is pure black by using information of the converted image data, a section classifying unit to classify the image data into a text section and an image section by using a result of the pure black determination, and a color coordinate converter to perform color coordinate conversion on the image section of the classified sections. Therefore, it is possible to improve readability of black text.
Claims24
An image forming apparatus, comprising:
- a decoder to decode a compressed image to convert the compressed image into image data;
- a pure black determining unit to determine whether the image data is pure black by using information of the converted image data;
- a section classifying unit to classify the image data into a text section and an image section by using a result of the pure black determination;
- and
- a color coordinate converter to perform color coordinate conversion on the image section of the classified sections based on the image data classification without color coordinate converting the text section.
A method of forming an image, the method comprising:
- decoding a compressed image with a decoder to convert the compressed image into image data;
- determining whether the image data is pure black by using information of the converted image data;
- classifying the image data into a text section and an image section with a section classifying unit by using a result of the pure black determination;
- and
- performing color coordinate conversion only on the image section of the classified sections based on the image data classification by using a color coordinate converter without color coordinate converting the text section.
An image forming apparatus, comprising:
- a decoder to output image data of a compressed image;
- a pure black determining unit to map the image data into a text section and an image section;
- and
- a color coordinate converter to prevent color coordinate conversion on the text section to output pure black data of the text section.
Dependencies are inferred from the claim text.