发明名称 |
Image processing apparatus, image forming apparatus and recording medium |
摘要 |
An image processing apparatus includes a compression processing section that compresses image data obtained by reading a plurality of documents into a file, a specifying section that specifies an amount of information for an image of each of the plurality of documents, and a compression size calculation section that calculates a size after compression of an image of each document in accordance with the specified amount of information. The compression processing section compresses the image by using the size after compression calculated by the compression size calculation section. |
申请公布号 |
US9497486(B2) |
申请公布日期 |
2016.11.15 |
申请号 |
US201414307813 |
申请日期 |
2014.06.18 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
Ohira Masakazu |
分类号 |
H04N19/85;H04N19/134;H04N19/136;H04N19/146;H04N19/194 |
主分类号 |
H04N19/85 |
代理机构 |
Birch, Stewart, Kolasch & Birch, LLP |
代理人 |
Birch, Stewart, Kolasch & Birch, LLP |
主权项 |
1. An image processing apparatus including a compression processing section for compressing image data obtained by reading a plurality of documents into a file, comprising:
a processor configured to: specify an amount of information of an image of each of the plurality of documents; calculate a size after compression of the image in accordance with the amount of information of the entire plurality of documents and the amount of information of each document specified by the processor; calculate the number of text pixels and chromatic pixels of each image based on pixel values of a plurality of pixels constituting each image; and multiply the number of text pixels by a first weighting coefficient and multiply the number of chromatic pixels by a second weighting coefficient to add the results of the multiplication, wherein the image data is compressed by using the size calculated after compression, and the processor specifying a value obtained by multiplying the number of text pixels by a first weighting coefficient and multiply the number of chromatic pixels by a second weighting coefficient to add the results of the multiplication as the amount of information. |
地址 |
Osaka JP |