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Method and device for zooming pictures

A picture scaling and picture technology, applied in the field of image processing, can solve the problems of inconsistent text ratio, affecting the effect of picture scaling, unclear text, etc., and achieve the effect of improving picture quality and display effect.

Inactive Publication Date: 2015-12-09
TVM BEIJING EDUCATION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When there is text on the picture, after this scaling process, the ratio of the text will become very uncoordinated, and even the text will be unclear after zooming, which greatly affects the zoom effect of the picture

Method used

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  • Method and device for zooming pictures
  • Method and device for zooming pictures
  • Method and device for zooming pictures

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1. This embodiment is aimed at a simple picture in which the main body and the background can be separated. For example: a picture formed by a single-color background and text, a picture formed by a single-color background and multi-color regular shapes, or a picture formed by a regular pattern background and text, etc. In this embodiment, the process of image scaling is as follows figure 1 shown, including:

[0041] Step 101: When the picture to be scaled is a simple picture whose subject and background can be separated, extract the subject of the picture to be scaled, and divide the picture to be scaled into a first background picture and at least one first subject picture.

[0042] If the picture to be scaled is a simple picture in which the subject and the background can be separated, then the subject is extracted from the picture to be scaled. For example: In a simple picture formed by a monochromatic background and text, the text is the main body and ...

Embodiment 2

[0054] Embodiment 2. In this embodiment, the image to be scaled is a simple image formed of a monochrome background and text. see figure 2 , the process of image scaling in this embodiment includes:

[0055] Step 201: Determine whether the picture to be zoomed is a simple picture? If yes, execute step 202; otherwise, the process ends.

[0056] The technical solution in this embodiment is only for simple pictures, therefore, if the picture to be scaled is a simple picture, go to step 202; otherwise, the process ends.

[0057] Step 202: Extract the subject of the image to be zoomed, and divide the image to be zoomed into a first background image and at least one first subject image.

[0058] Since the picture to be scaled is a simple picture formed by monochrome background and text, the main body of the picture to be scaled can be extracted. Four or more pixel points can be found in the edge of the subject, wherein the color value of each pixel point is closest to the color...

Embodiment 3

[0066] Embodiment 3. In this embodiment, the picture to be scaled is a simple picture formed by a pattern background and a regular pattern. see image 3 , the process of image scaling in this embodiment includes:

[0067] Step 301: Determine whether the picture to be scaled is a simple picture? If yes, execute step 302; otherwise, the process ends.

[0068] Likewise, the technical solution in this embodiment is only for simple pictures, therefore, if the picture to be scaled is a simple picture, step 302 is performed; otherwise, the process ends.

[0069] Step 302: Extract the subject of the image to be zoomed, and divide the image to be zoomed into a first background image and at least one first subject image.

[0070] Since the picture to be scaled is a simple picture formed by a pattern background and a regular pattern, it is possible to extract the main body of the picture. Here, the subject of the image to be zoomed may be extracted according to the indication informa...

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Abstract

The invention discloses a method and a device for zooming pictures, wherein the method and the device are used for improving the quality of pictures after being zoomed. The method comprises the steps of extracting the main body of a to-be-zoomed picture on the condition that the to-be-zoomed picture is a simple picture and the main body and the background of the to-be-zoomed picture are divisible, dividing the to-be-zoomed picture into a first background picture and at least one first main body picture, zooming each first main body picture in an equal proportion to form a corresponding second main body picture, zooming the first background picture to form a second background picture, and forming a zoomed picture by utilizing the zoomed second background picture and each second main body picture. In this way, the main body picture can be individually zoomed in an equal proportion, so that the main body in the picture is prevented from getting deformed. The quality of the picture after being zoomed is improved.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a method and device for image scaling. Background technique [0002] When a user uses a smart terminal to browse, it may be necessary to zoom in on the browsed content so as to be able to browse the content clearly or comprehensively. [0003] At present, generally, the browsing content to be zoomed may be used as a picture for zooming as a whole. Specifically include: double-click any point on the image to be zoomed, and then zoom in on the entire image starting from the center of the image, or drag the border of the image to be zoomed, and zoom in on the entire image starting from the center point or boundary point . [0004] It can be seen that, regardless of the specific method, one image is scaled as a whole. When there are texts on the picture, the scale of the text will become very uncoordinated after this scaling process, and even the text will be uncl...

Claims

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Application Information

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IPC IPC(8): G06T3/40
Inventor 陆佳贾镇宣
Owner TVM BEIJING EDUCATION SCI & TECH CO LTD
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