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Picture processing device and method, program and memory medium

An image processing device and image processing technology, applied in the field of image processing, can solve problems such as application program crashes, increased user impatience, and inability to confirm images

Inactive Publication Date: 2006-03-01
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the existing method, since there is no off-screen image on the internal memory (off-screen buffer) at the time of initial drawing, in order to transfer to the screen (on-screen) for drawing after first creating the entire off-screen image , the user cannot confirm the image until the entire off-screen image is generated, especially in the case of a document that takes time to draw, the user's sense of impatience will increase, and the user will suspect that the application caused a crash, etc.

Method used

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  • Picture processing device and method, program and memory medium
  • Picture processing device and method, program and memory medium
  • Picture processing device and method, program and memory medium

Examples

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Embodiment Construction

[0014] The image processing device of this embodiment is shown in FIG. 1 .

[0015] 1 is the CPU for executing the program controlling the device; 2 is the keyboard for inputting data; 3 is the display for displaying document images; 4 is the hard disk for storing documents 4; 5 is the pre-stored program for controlling the device ROM and necessary information; 6 is a RAM used as various work areas, and an off-screen buffer for storing images drawn on the off-screen (virtual screen) can be guaranteed in this RAM; 7 is to draw document images on the screen The rendering unit 7 and 11 of the display 3 (inside the screen) are buses for transmitting various data. The rendering unit 7 includes an off-screen rendering unit 8 that expands (draws) the rendering elements in the document one by one outside the screen; and a display rendering unit 9 that draws the content expanded (drawing) outside the screen on the display 3 ; and an intermediate rendering judging unit 10 that judges w...

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Abstract

The invention provides a picture processing device and method, program and memory medium. In an image processing apparatus of this invention, every time a predetermined number of drawing elements among drawing elements included in document data are developed off-screen, it is checked whether or not the developed off-screen drawing elements satisfy intermediate drawing conditions and, when it is determined that the intermediate drawing conditions are satisfied, the developed off-screen drawing elements are drawn on the display.

Description

technical field [0001] The present invention relates to image processing when displaying document images. Background technique [0002] Conventionally, in the display control of displaying documents generated by various applications on the screen, when scrolling the displayed part and redrawing the part hidden in another window, in order to quickly draw, the internal memory (storage screen) An off-screen buffer for off-screen data) stores an off-screen image (an image generated by developing a drawing element on an off-screen (virtual screen)). [0003] However, in the existing method, since there is no off-screen image on the internal memory (off-screen buffer) at the time of initial drawing, in order to transfer to the screen (on-screen) for drawing after first creating the entire off-screen image , the user cannot confirm the image until the entire off-screen image is generated, especially in the case of a document that takes time to draw, the user's sense of impatience ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T1/00G06F9/06G09G5/00G06F3/048G06F3/0484G09G5/36G09G5/393G09G5/395
CPCG09G5/363G09G5/393
Inventor 中塚忠则
Owner CANON KK