From Baidu image screening conditions analysis Baidu crawl included pictures which information

Just read a news on the internet, said 360 of the image search function of the beta version officially online, so went to use a bit. found that 306 image search currently supported by the retrieval conditions only limited to the size of the picture, this feature relative to Baidu image search of many precise settings, but also a single. Baidu is able to provide so many image retrieval conditions, it has established a more comprehensive picture information Index library, then Baidu in the collection of pictures, will grab pictures of what information to facilitate the accurate search of users?

We all know, the current image search is mainly based on the image of the alt and title of the positioning text, that is, we search for pictures, only when we search the keyword and the image of the positioning text to match, the picture will appear in the search results. In addition to the positioning of the text, Baidu will also grab pictures of the information it? Let's look at Baidu search filter items, to analyze Baidu's image grabbing information items.

　　

1. Picture format;

This is in Baidu image search home Click-Advanced after the advanced search screenshot, through this interface we can intuitively find that, apart from the keyword and picture limited URL, the current Baidu can provide JPG, GIF, BMP, PNG four kinds of image Retrieval format, that is, Baidu in the collection of pictures, The picture format is captured and indexed as an informational point.

　　

2. The capture time of the picture;

For example, we search for Christmas in Baidu, row in front of the picture basically has a crawl time hints, this shows that Baidu for the new capture of the image will be in the search after the death of the default put them in front. Other pictures that were crawled earlier are identified with snapshot time.

3. The pixel size of the picture;

On the left side of the picture search results, there is a list of functional options for filtering. The first is the size of the picture, Baidu also provided in accordance with the preset accurate image size to retrieve. This shows that Baidu in the collection of pictures will crawl and record the exact size of the picture data.

4. Color distribution data of the whole picture;

Baidu provides color to filter according to the characteristics of the image, currently supports 12 color screening. Through this function we can be measured, Baidu in the collection of pictures, will be in accordance with a certain color in the overall picture of the threshold, the picture according to the 12 colors to classify, and as a basis for the establishment of a search for users accurate screening.

5. Static and dynamic format of the picture;

Above mentioned, Baidu currently contains 4 kinds of pictures, and then the four kinds of pictures according to the dynamic and static division into two categories. But I found in the screening, Baidu this search is only the GIF format of the picture alone out, the default is that it is a dynamic picture, and the other three of the format of the picture is classified as a static diagram.

6. The main content of the picture;

Baidu last a precision item provided by the filter we can judge, in fact, Baidu has been initially able to show the content of the picture to do a certain evaluation. Although this function is still weak, but for search engines, after all, the image of the expression of the content of the recognition step. It can be predicted that in the future, Baidu will have more recognition technology to show the content of the picture.

As we all know, the current Baidu for the capture of pictures relative to the text content is still relatively weak, but with other search engines such as 360 of the image search, Baidu still has a considerable leading edge. Of course, we can not be too demanding on 360, after all, the 3B war has just begun, I believe the two in the search field will be more collisions. From the point of view of the user, we hope that each collision of 3B will bring us a more exciting search experience.

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