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An image processing method and image processing device

An image processing device and image processing technology, which are applied in the field of image processing, can solve problems such as slow computing speed, failure to reach users, and low efficiency, and achieve the effects of improving satisfaction, timely display, and clear pictures

Inactive Publication Date: 2009-10-21
GUANGDONG VTRON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As mentioned above, when the extracted data is enlarged, the extracted image data needs to be processed, the data processing is cumbersome, the calculation speed is slow, and the efficiency is low, which leads to the unsatisfactory zoom processing effect on the image file, and The image will also be distorted. As the number of operations increases, the image distortion will become more serious, and the image will become more and more blurred
At the same time, the existing technology also relies on the specified ratio when processing the image data of the extracted local area, and before each local zoom-in, the local zoom-in ratio is preset, so it is impossible to select the zoom-in ratio selected by the user every time. After the region is enlarged, it will be displayed within the display area of ​​the display terminal with a better display effect. Therefore, if the extracted partial image has a large range, the enlarged image data will not be displayed completely at one time; if the extracted partial image If the image range is relatively small, the image displayed on the display screen after zooming in will not meet the user's needs

Method used

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  • An image processing method and image processing device
  • An image processing method and image processing device
  • An image processing method and image processing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: In this embodiment, the user selects the selected area through the horizontal mode as an example for illustration:

[0032] Step 1. The user triggers the event by drawing a horizontal line segment AB in the display area. The screen physical coordinates of the two ends of the line segment are A(x A ,y A ), B(x B ,y B ), taking the line segment AB as the image data a of the selected area.

[0033] Step 2. In this embodiment, if it is in the horizontal mode, the result of zooming in on the selected area can be horizontally zooming in on the image range w corresponding to the line segment AB to the maximum width W of the display area.

[0034] The process of obtaining f' can be realized by the following formula:

[0035] f'=(f÷w)×W

[0036] Step 3, the zoom factor f of the image file corresponding to the zoom factor f' and the stored corresponding image files of all zoom ratios i Do the comparison and find out the layer coefficient f that is closest to t...

Embodiment 2

[0047] Embodiment 2: In this embodiment, the user selects the selected area through the vertical mode as an example for illustration:

[0048] Step 1. Draw a vertical line segment AB in the display area, and the screen physical coordinates of the two ends of the line segment are A(x A ,y A ), B(x B ,y B ), taking the line segment AB as the image data a of the selected area.

[0049] Step 2. In this embodiment, if it is a vertical mode, the enlarged result of the selected area may be to vertically enlarge the image range h corresponding to the line segment AB to the maximum height H of the display area.

[0050] The process of obtaining f' can be realized by the following formula:

[0051] f'=(f÷h)×H

[0052] Obtaining the image data of the size of the display area according to f' is similar to step 3 to step 5 in the embodiment, and will not be repeated here.

Embodiment 3

[0053] Embodiment 3. In this embodiment, the user selects the selected area through the area mode as an example for illustration:

[0054] Step 1. Draw a line segment AB arbitrarily in the display area, and the screen physical coordinates of the two ends of the line segment are A(x A ,y A ), B(x B ,y B ), a rectangular area with the two endpoints of this line segment as the diagonal points is used as the image data a of the selected area.

[0055] Step 2. In this embodiment, since the operation mode is the regional mode, in order not to make the corresponding area of ​​the selected area on the corresponding zoom ratio image file exceed the scope of the display area after zooming in, only the height and width are selected when zooming in. The magnification ratio with the smaller magnification factor is used as the magnification basis for magnification. This can be achieved with the following formula:

[0056] f' w =(f÷w)×W

[0057] Among them, f' w is the zoom rate calc...

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Abstract

The present invention provides an image processing method and device. When saving an image file, the image file is compressed according to different zoom ratios and stored, and the corresponding zoom ratio information and the identification information of the image file are recorded; Then search for the corresponding image file according to the identification information of the image file in the user instruction, and send the corresponding image file to the display terminal for display; when processing the currently displayed image file, search for the corresponding image file according to the determined zoom ratio According to the location information of the selected area, the corresponding image data is obtained and displayed on the display terminal. The invention enables users to operate conveniently, display in time, and have clear pictures when they browse the area they are interested in, thereby improving the user's satisfaction.

Description

technical field [0001] The invention relates to image processing technology, in particular to a technology for processing partial data in images displayed on a screen. Background technique [0002] The traditional image local enlargement technology usually extracts the local image data to be scaled from all the image data of the main image, then scales the image data of the extracted local area at a specified ratio, and finally overlays the zoomed local image data on the entire image data. Region image data. [0003] As mentioned above, when the extracted data is enlarged, the extracted image data needs to be processed, the data processing is cumbersome, the calculation speed is slow, and the efficiency is low, which leads to the unsatisfactory zoom processing effect on the image file, and The image will also be distorted. As the number of operations increases, the image distortion will become more serious, and the image will become more and more blurred. At the same time,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/21H04N1/41G09G5/38
Inventor 谢桂冠胡建华
Owner GUANGDONG VTRON TECH CO LTD