2016.6.13 essay ———— image acquisition, processing, video capture, PNG image size reduction

1. Get pictures and other resources on the page

We recommend using Chrome browser

CRTL + SHIFT + J

Then there is a column of resources, which you can select to see:

The images contains all the picture elements of the page.

Additional:

The Firebug in the Firefox browser is very useful. If it is to do web development, JS debugging, etc., recommended with this.

2. Image acquisition and processing

Gets the picture on the page, but the resolution is not very high, or there is a watermark. The processing method is as follows:

Use image search engine such as, TinEye Baidu map, etc.

This material selection is not good, you can Baidu to figure out how to use.

Then use the waifu2x gadget to convert

Online Link: http://waifu2x.udp.jp/

Then there is a higher-quality PNG image.

3. png jpg vector image

PNG is a relatively lossless image

JPG is a higher image after compression distortion

Vector map According to geometric characteristics, regardless of magnification also lose true picture, but the color composition method can not be complex, generally used in typesetting, layout design and so on.

4. B Station video and other resources download

Add JJ after Bilibili

You can also download videos with a mouse

5. PNG Image shrinking site

Https://tinypng.com

Reduce the size of the original image with the same quality

2016.6.13 essay ———— image acquisition, processing, video capture, PNG image size reduction