Shulou(Shulou.com)06/02 Report--

In this issue, the editor will bring you about Python how to read the profile picture of Wechat friends and spell it into a blessing language. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

Today, there is a brother's birthday, combined with Wechat profile portrait and lattice characters, made an avatar spelling code, the effect of nine palace boxes in moments is as follows:

Among them, each word is a 16-16 dot matrix, and each dot in the dot matrix can be disassembled into 4 friends' profile pictures:

The Chinese character text in the code can be custom input, and the avatar picture can also be other prepared pictures. What do you think? isn't it cooler than the previous lattice characters?

Train of thought

The basic idea is very straightforward: read the profile photos of Wechat friends and splice them according to the dot matrix information of Chinese characters to generate a complete word picture.

The idea of reading Wechat friends' avatars was mentioned in the previous section: use the open source Wechat interface itchat, scan the code to log in to personal Wechat, read the profile photos in friends' information and save them locally.

Obtaining the dot matrix information of Chinese characters is also in accordance with the previous idea: using Chinese character library HZK16 files to achieve. After getting the lattice information, the background image is treated as a 16'16 dot matrix, and the dots in the lattice are replaced by profile picture and blank space. Here, in order to improve the richness of character strokes, I use one dot corresponding to four avatar pictures.

Itchat

Itchat is an open source Wechat personal ID interface. It has never been easier to use python to call Wechat.

The first step is to install the itchat library, import itchat it in the code, and then call the method directly.

# Log in to the web version of Wechat through the QR code

Itchat.auto_login ()

# get Wechat friend information list

FriendList = itchat.get_friends (update=True)

Get the avatar picture

Through the information in the friends list, read the content of the avatar picture and store it locally, thus completing the acquisition of the avatar material.

If you have a lot of friends, this stage will take a long time. In addition, during this process, it is found that some friends may not set the avatar, or the avatar format is special, which will lead to reading failure. Here we need to use try except syntax to control it.

Chinese characters turn to dot matrix

The dot matrix font divides each character into 16 × 16 or 24 × 24 dots, and then uses the virtual and real of each point to represent the outline of the character. Dot matrix fonts are also called bitmap fonts, in which each glyph is represented by a set of two-dimensional pixel information

HZK16 font library is a 16 × 16 dot matrix font that conforms to the GB2312 standard. It supports 6763 Chinese characters. Each Chinese character model needs 16 × 16 points to display.

Profile picture stitching

Each avatar picture is cut to 100 square diagrams, 16 to 16 dots, and each dot is 2 to 2 avatar squares, that is, the final picture is 16 square diagrams in length.

First, the background image is generated through the PIL module, and you can set your favorite color:

# if you want a white background, change colorlist [index] to'# FFFFFF'

Canvas = Image.new ('RGB', (3200, 3200), colorlist [index]) # create a new canvas

According to the dot matrix information of Chinese characters, whether the head picture is displayed in this position is controlled, and finally the single word big picture of the head picture stitching is generated.

Nine palace grid effect

The effect of the ninth palace in Wechat moments is as follows. First of all, New year's greetings:

There is also Zhang Daji Dali eating chicken nine palace grid:

Review

The idea of using avatars to form words has been around for a long time. At first, I wanted to design glyphs to arrange avatars according to strokes. I thought it was too hard to do it. Recently, after coming into contact with dot matrix words and displaying them with code, we have the confidence to realize picture words.

Happens to meet a friend's birthday, with the code to send a little something, relatively simple, but focus on the heart, the feeling is still very good.

With regard to dot matrix words, from the beginning to display with 0 and 1, to change into special symbols to improve beauty, and then to use the tkinter graphical interface to standardize the style, and now use pictures to spell dot matrix words, it can be regarded as a vertical self-learning process. May focus on fun rather than application, but in the process, think carefully, try your best, right as a kind of exercise for yourself.

The above is the Python that the editor shared with you how to read the profile picture of your friends on Wechat and spell it into a blessing word. If you happen to have similar doubts, please refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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