Image upload space or the reason for the blur of Friends Circle and the solution

Believe that a lot of friends have been to upload space or friends of the picture is very vague, this is how to do? How to make the picture clear? The following small series for everyone to bring pictures upload blurred solution, together to see it.

Many children's shoes have such doubts, in space, microblogging, friends and other social platforms to upload or download photos, why the total feeling is not clear? In particular, the picture enlarged, even nose mouth can not be divided, simply miserable.

In fact, this is a common phenomenon, called "pixel loss." The main reason is that the site in the processing of users upload pictures, in order to save server space and resources, the image of the compression of the moral integrity.

An artist has done a test on this phenomenon, uploading and downloading a photo repeatedly, and the result is this.

So how do you keep the uploaded pictures clear?

First, do not directly upload SLR photos taken out. SLR camera pictures are generally around 10M, is the most easily without the integrity of compression.

Second, the large image of the high definition to cut back to pass. By cutting the large HD image, you can reduce the pixel in a controllable range without being overly compressed and causing ambiguity.

Third, avoid uploading low pixel photos. Some pictures originally pixel is not high, upload after being downloaded more times is more blurred. Especially on Weibo, some of the public accounts uploaded pictures we open is very vague, because the original image is not clear enough.