CN100399333C - Breviary image creating method using compressibility cartoon file - Google Patents
Breviary image creating method using compressibility cartoon file Download PDFInfo
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- CN100399333C CN100399333C CNB200510105591XA CN200510105591A CN100399333C CN 100399333 C CN100399333 C CN 100399333C CN B200510105591X A CNB200510105591X A CN B200510105591XA CN 200510105591 A CN200510105591 A CN 200510105591A CN 100399333 C CN100399333 C CN 100399333C
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- image
- compressibility
- animation file
- file
- key frame
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/0007—Image acquisition
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T13/00—Animation
- G06T13/80—2D [Two Dimensional] animation, e.g. using sprites
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/20—Analysis of motion
Abstract
The present invention relates to a breviary image creating method using compressibility cartoon file. The present inventive breviary image creating method using compressibility cartoon file is charactered in that it includes the following steps: a step of analyzing the header parsing of the animation file, and judging each compressed frame image compression rate; a step of selecting the image with the lowest rate and setting as a key frame in the images of the said animation file, wherein the said image with the lowest rate refers to the image that has less repeated patterns in the images which continually occur in the animation file, and also refers to the image with the largest image size. The present invention can use the key frame that sums up the full contents of the animation files to form the corresponding thumbnail.
Description
Technical field
The present invention relates to utilize the reduced graph generating method of the animation file of compressibility, the key frame (Key frame) of full content that particularly, can be by summarizing animation file (Animated GIF) generates the reduced graph generating method of the animation file that utilizes compressibility of corresponding thumbnail (Thumbnail).
Background technology
In general, key frame refers to the representational frame that can summarize whole dynamic image content in the dynamic image of a plurality of frames formations.
Therefore, can need not to watch whole dynamic image just can confirm general content by above-mentioned key frame, when in a plurality of dynamic images, seeking the dynamic image of required content, need not watch the content of all dynamic images, but by finding out required dynamic image with reference to the key frame of each dynamic image.
The method of current extraction key frame is divided into 4 kinds substantially.
First method is the method that first frame of camera lens (shot) or intermediate frame and last frame is extracted as key frame; Second method is to extract the method for key frame by the change color amount.
Third party's method is to extract the method for key frame by action (Motion) variable quantity; Cubic method is to use the method for change color amount and action variable quantity extraction key frame simultaneously.
In the mobile communication terminal of the CPU that uses lower-performance, as being used for the extraction method of key frame that thumbnail generates, use in first method with the method for first frame as key frame.
Fig. 1 is the illustration figure for crucial frame generating method in the animated image file of explanation prior art.Under the situation of (a)～(d) of accompanying drawing 1, the key frame that first frame is extracted as that prompting has in the technology uses example at thumbnail, (e) of accompanying drawing 1 to point out out last frame is extracted as key frame and uses example at thumbnail.
But first frame that utilizes of the prior art has following problem as the method that thumbnail uses.
That is, only can't represent the content of whole animations that a plurality of scenes constitute fully, if when first frame is solid color, even be that the animation of two complete contents inequality also can't be distinguished by first frame.
When utilizing as shown in Figure 1 under first frame or the last situation of frame, can't confirm the content of whole animation file (Animated GIF) by the thumbnail of above-mentioned generation as thumbnail.
In video lens (Shot), extract in the method for key frame, usually first frame is generated thumbnail as key frame, but under the situation of animation file (Animated GIF), because first frame be that monochromatic situation is more on picture characteristics, thereby can't confirm the content of whole animation by the thumbnail of above-mentioned first frame generation.
Summary of the invention
Solve above-mentioned problems of the prior art for making, the object of the present invention is to provide a kind of reduced graph generating method that utilizes the animation file of compressibility, make the key frame (Key frame) of the full content that can pass through summary animation file (Animated GIF) generate corresponding thumbnail (Thumbnail).
Achieve the above object for making, the reduced graph generating method of the animation file that utilizes compressibility among the present invention, it is characterized in that, when realizing, include following several steps: the step of shelves head (header) information analyses (parsing) of animation file also being judged the two field picture compressibility of each compression with mobile communication terminal modulator-demodular unit MSM; In the image in above-mentioned animation file, select the minimum image of compressibility and be set at the step of key frame; The key frame of above-mentioned setting is generated as the step of thumbnail image.
As mentioned above, the reduced graph generating method of the animation file that utilizes compressibility in according to the present invention utilizes the method for the shelves header that only needs to analyze animation file, just can find out the key frame that can summarize whole animation file content in the less time.
And the present invention sets and above-mentioned key frame is converted in the process of thumbnail at key frame, need not to use more cpu load amount, thereby can be applied in the mobile communication terminal easily.
Description of drawings
Fig. 1 is the illustration figure for crucial frame generating method in the animated image file of explanation prior art:
(a)～(d): first frame is a key frame, and (e): last frame is a key frame;
Fig. 2 is the illustration figure at the compressibility of the image more complicated degree correspondence of identical size:
(a): compressibility is 95%, and (b): compressibility is 88%, and (c): compressibility is 67%;
Fig. 3 is the illustration figure of the thumbnail image that generates from animation file according to the present invention;
Fig. 4 is the illustration figure of the structure of general animation file (GIF89a);
Fig. 5 is a computer program FB(flow block) of the present invention.
Embodiment
The present invention is intended to: utilize the structure of animation file (GIF89a), compressibility is minimum, complex image is extracted as key frame and uses as thumbnail, thereby makes the user confirm the general content of animation file easily by above-mentioned thumbnail image.
With reference to the accompanying drawings the embodiment among the present invention is described in detail.
Wired, when the structure in giving each accompanying drawing is given reference marks, identical structure will be given identical symbol as far as possible in each accompanying drawing.
And below the specific specific embodiment such as concrete treatment scheme in the explanation of carrying out are just for the content among clearer and more definite the present invention, and the operator of relevant industries is not having under the situation of above-mentioned specific embodiment, can realize basic fundamental thought of the present invention yet.
In addition, the detailed description for making clear and definite basic fundamental thought of the present invention save known function and structure correspondence.
Fig. 2 is the illustration figure at the compressibility corresponding with the image complexity of identical size.As shown in the figure, when the width (width) of each image and length respectively are 155 pixels and 193 pixels, the image file size of color bits (color bit) 1 byte is 29,915Bytes, but with the LZW data compression method of GIF89a (by the exploitation of Sperry company of predecessor of U.S. Unisys company) when compressing, the compressible one-tenth of above-mentioned image file respectively has different sizes, and the compressibility of its each image is as follows:
The compressibility of first image (a)=(29915-1483)/29915=95%
The compressibility of second image (b)=(29915-3513)/29915=88%
The compressibility of the 3rd image (c)=(29915-9909)/29915=67%
Hence one can see that, and in the width image identical with length, its compressibility of complex image will be low more.
Therefore, the present invention utilizes the lower situation of the compressibility of complex image, complex image is set at key frame and uses be thumbnail image, thereby make the user confirm the content of animation file easily.
Fig. 3 is the illustration figure of the thumbnail image that generates from animation file according to the present invention.As shown in the figure, as the key frame of animation file, complex image is suitable as representativeness (highlight) part in whole animated contents, rather than simple image such as first frame of the prior art or last frame.
That is, with reference to above-mentioned accompanying drawing 2, the minimum image of compressibility is for complex image, when above-mentioned complicated image is used as key frame, and content that can the whole animation of the properest demonstration.
Fig. 4 is the illustration figure of the structure of general animation file (GIF89a).As shown in the figure, each two field picture of animation file (Image 1～Image N) will respectively compress by the LZW data compression method and store.The characteristic of above-mentioned LZW data compression method be repeatedly pattern (ptttern) the multiple pressure shrinkage is high more more, thereby it is simple to judge the image that compressibility is high.
Thus, need not animation file (GIF89a) is decoded, but the shelves header of only analyzing (parsing) image just can be confirmed the compressibility of the two field picture of each compression.
By above-mentioned analysis operation, to from the image in the above-mentioned animation file (GIF89a), select the maximum image of image size and be set at key frame, owing to an analysis image shelves a header need not image file is decoded, required the sands are running out also makes the load of CPU also less, so can be applied in the mobile communication terminal easily.
With of the prior art first frame or intermediate frame, last frame are compared as the situation that key frame uses, utilize load much at one can extract the key frame that compresses whole GIF animation file content among the present invention, the user only need watch above-mentioned key frame just can confirm the general content of whole animation file.
Claims (2)
1. a reduced graph generating method that utilizes the animation file of compressibility is characterized in that, when realizing with the mobile communication terminal modulator-demodular unit, includes following several steps:
Analyze the shelves header of animation file and judge the respectively step of the two field picture compressibility of compression;
In the image in above-mentioned animation file, select the minimum image of compressibility and be set at the step of key frame;
The key frame of above-mentioned setting is generated as the step of thumbnail image.
2. the reduced graph generating method that utilizes the animation file of compressibility according to claim 1 is characterized in that:
Above-mentioned animation file is the image file of GIF89a form.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050009243A KR101114110B1 (en) | 2005-02-01 | 2005-02-01 | Thumbnail generation method for animation image file using compression rate |
| KR1020050009243 | 2005-02-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1815470A CN1815470A (en) | 2006-08-09 |
| CN100399333C true CN100399333C (en) | 2008-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200510105591XA Expired - Fee Related CN100399333C (en) | 2005-02-01 | 2005-09-27 | Breviary image creating method using compressibility cartoon file |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101114110B1 (en) |
| CN (1) | CN100399333C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008147838A (en) * | 2006-12-07 | 2008-06-26 | Sony Corp | Image processor, image processing method, and program |
| CN102332001B (en) * | 2011-07-26 | 2013-06-26 | 深圳万兴信息科技股份有限公司 | Video thumbnail generation method and device |
| CN108446373A (en) * | 2018-03-16 | 2018-08-24 | 五八有限公司 | Animation playing method, device, equipment and storage medium |
| CN114363699B (en) * | 2019-07-29 | 2024-03-12 | 创新先进技术有限公司 | Animation file playing method and device and terminal equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003058498A1 (en) * | 2001-12-28 | 2003-07-17 | Canon Kabushiki Kaisha | Moving image data management apparatus and method |
| CN1505363A (en) * | 2002-11-27 | 2004-06-16 | �ձ�������ʽ���� | Cellular telephone set, setting method of self-produced animation of consecutively taken pictures used in the same, and program to be used for the method |
| CN1538351A (en) * | 2003-04-01 | 2004-10-20 | Generating visually representative video thumbnails |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW544634B (en) | 2001-10-05 | 2003-08-01 | Newsoft Technology Corp | Thumbnail sequence generation system and method |
| KR20040033767A (en) * | 2002-10-15 | 2004-04-28 | 케이투아이엠에스 | Korean news title auto abstraction method by Korean image character recognition function |
-
2005
- 2005-02-01 KR KR1020050009243A patent/KR101114110B1/en not_active IP Right Cessation
- 2005-09-27 CN CNB200510105591XA patent/CN100399333C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003058498A1 (en) * | 2001-12-28 | 2003-07-17 | Canon Kabushiki Kaisha | Moving image data management apparatus and method |
| CN1505363A (en) * | 2002-11-27 | 2004-06-16 | �ձ�������ʽ���� | Cellular telephone set, setting method of self-produced animation of consecutively taken pictures used in the same, and program to be used for the method |
| CN1538351A (en) * | 2003-04-01 | 2004-10-20 | Generating visually representative video thumbnails |
Non-Patent Citations (6)
| Title |
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| 一种从压缩视频流中提取关键帧的方法. 朱映映，周洞汝.计算机工程与应用，第18期. 2003 |
| 一种从压缩视频流中提取关键帧的方法. 朱映映，周洞汝.计算机工程与应用，第18期. 2003 * |
| 浅谈GIF动画文件格式. 葛晓敏，郑健.电子技术，第8期. 2004 |
| 浅谈GIF动画文件格式. 葛晓敏，郑健.电子技术，第8期. 2004 * |
| 用JAVA语言实现GIF图像文件的编码. 贝雨馨，徐晓霞.延边大学学报(自然科学版)，第28卷第2期. 2002 |
| 用JAVA语言实现GIF图像文件的编码. 贝雨馨，徐晓霞.延边大学学报(自然科学版)，第28卷第2期. 2002 * |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101114110B1 (en) | 2012-02-21 |
| KR20060088370A (en) | 2006-08-04 |
| CN1815470A (en) | 2006-08-09 |
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