| 发明名称 | Systems and methods for quantifying graphics or text in an image | ||
| 摘要 | Systems and methods for quantifying an image generate a grayscale histogram of an image, wherein the grayscale histogram includes a respective number of pixels for a plurality of histogram values; determine a respective percentage of pixels in each of the histogram values based on the numbers of pixels for the respective histogram value and a total number of pixels in the image; compare the respective percentages of the histogram values to a first threshold; add the respective percentages that exceed the first threshold to a total percentage; and compare the total percentage to a second threshold. | ||
| 申请公布号 | US9058539(B2) | 申请公布日期 | 2015.06.16 |
| 申请号 | US201313864072 | 申请日期 | 2013.04.16 |
| 申请人 | Canon Kabushiki Kaisha | 发明人 | Seikh Attaullah |
| 分类号 | G06K9/00;G06K9/46;G06T9/00;G06T7/00;H04N19/172;H04N19/12;H04N19/136 | 主分类号 | G06K9/00 |
| 代理机构 | Canon U.S.A., Inc. IP Division | 代理人 | Canon U.S.A., Inc. IP Division |
| 主权项 | 1. A method for selecting an image encoder, the method comprising: generating a grayscale histogram of an image, wherein the grayscale histogram includes a respective number of pixels for a plurality of histogram values; determining a respective percentage of pixels in each of the histogram values based on the number of pixels for the respective histogram value and a total number of pixels in the image; comparing the percentages of pixels in the histogram values to a first threshold; adding the percentages of pixels in the histogram values that exceed the first threshold to a total percentage; comparing the total percentage to a second threshold; and encoding the image with an encoder that is selected based on the second threshold. | ||
| 地址 | Tokyo JP | ||