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Display control method and apparatus
| Details |
Inventors: Ohshima, Masamichi; Ina, Kenzoh; Nobutani, Toshiyuki; Shimakura, Masami; Tanahashi, Junichi; Ono, Kenichiro; Morimoto, Hajime; Sakashita, Tatsuya; Matsuzaki, Eiichi;
Assignee: Canon Kabushiki Kaisha (Tokyo, JP)
Primary Examiner: Hjerpe; Richard A.
Assistant Examiner: Chang; Kent
Attorney, Agent or Firm: Fitzpatrick, Cella, Harper & Scinto
A high quality display image is displayed on a screen by providing an; image area information generator means (203) for generating image area information for designating an area for displaying binarization image data to be obtained by image processing of image data in the multi-level frame buffer on the screen and the area for displaying binarization image data to be obtained by approximate color conversion, based on a computer software, and a processor for processing the image data based on the image area information. |
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DETAILED DESCRIPTION An object of the invention is to eliminate the aforementioned drawbacks.
The present invention resides in effecting excellent image display, when the level number of image data displayable on display means is smaller than the level number of input image data.
In particular, it is an object of the invention to effect appropriate processing in accordance with the features of an image to be displayed.
To accomplish such object, according to the present invention, there is disclosed an apparatus for controlling display means which is capable of displaying m-level image data for each pixel, comprising, memory means for storing image data having n-level (n>m) for each pixel, processing means for processing the image data stored in said memory means and generating processed image data having m-level for each pixel, and supplying means for supplying the processed image data generated by said processing means to the display means as display data, wherein said processing means further comprising discriminating means for discriminating characteristic of an image represented by the image data stored in said memory means and converting means for converting the image data having n-level for each pixel into the processed image data having m-level for each pixel in accordance with the discrimination result of said discriminating means.
Also, it is another object of the present invention to provide an excellent diaplay image in accordance with discrimination information of characteristic of an image from the external device.
To accomplish such object, according to the present invention, there is disclosed an apparatus for controlling display means which is capable of displaying m-level image data for each pixel, comprising, receiving means for receiving image data having n-level (n>m) for each pixel and discrimination information representing characteristic of an image represented by the image data having n-level, processing means for processing the image data having n-level for each pixel in accordance with the discrimination information and generating processed image data having m-level for each pixel, and supplying means for supplying the processed image data generated by said processing means to the display means as display data
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Processing Data 
