如何使用 Python 处理“作为字节字符串的图像数据”？
首先，我将解释我想要做什么，然后解释我的问题。
好的，我一直在制作一个项目的原型，我希望在整个夏天进行该项目。该项目是一个小型媒体播放器，要求之一是显示 mp3 文件的专辑插图。
经过一番研究，我发现了这个库： http://code.google.com/p/mutagen/
我选择此库的原因是因为它没有任何依赖项，它将使我的应用程序更加可移植。
在摆弄代码后，我能够从 mp3 文件中检索数据，例如艺术家和录音年份等。我将在这里进行一些演示：
from mutagen.mp3 import MP3
audio = MP3("born.mp3")
artist = audio["TPE1"]
print artist
如果这没有多大意义，这是教程由 mutagen 提供 - http://code.google.com/p/mutagen/wiki/教程（有点短）
问题 - 我想使用 pygame 显示图像。通常这会读成这样：
monkey = pygame.image.load("monkey.jpg")
screen.blit(monkey,(0,0))
但我想使用图像文件中的图像。因此，从第一个示例开始，它的内容如下：
audio = MP3("born.mp3")
data = audio.tags['APIC:'].data
monkey = pygame.image.load(data)
但是 pygame 会抛出异常错误，因为变量“value”的数据类型是字节字符串形式的原始图像数据。
问题 - 是否可以将字节字符串转换为某种图像格式以便 pygame 可以使用它？
有关图像的 python 文档 - http://www.pygame.org/docs/ref/image .html
我不确定是否可以做到我所要求的，所以请原谅我！
First I'm going to explain what I'm trying to do and then explain my problem.
Okay so I've been making prototypes on a project that I hope to be working on over the summer. The project is a small media player and one of the requirements is to display the albulm artwork of an mp3 file.
After some research I found this library:
http://code.google.com/p/mutagen/
The reason I chose this library was because it doesn't have any dependencies and it would make my application more portable.
After fidilling around with the code I was able to retrieve data from the mp3 file, such as the artist and recording year etc. I'll give a little demonstration here:
from mutagen.mp3 import MP3
audio = MP3("born.mp3")
artist = audio["TPE1"]
print artist
In case this doesn't make much sense, this is the tutorial that is provided by mutagen - http://code.google.com/p/mutagen/wiki/Tutorial (its a little bit short)
Problem - I want to display the image using pygame. Normally this would read something like this:
monkey = pygame.image.load("monkey.jpg")
screen.blit(monkey,(0,0))
but instead I want to do use the image from the image file. So going from the first example it reads something like:
audio = MP3("born.mp3")
data = audio.tags['APIC:'].data
monkey = pygame.image.load(data)
but pygame throws an exception error because the data type of the variable 'value' is raw image data as a byte string.
Question - Is it possible to convert the byte string to some sort of image format so pygame can use it?
For python documentation on images - http://www.pygame.org/docs/ref/image.html
I'm not sure if it is even possible to do what I am asking so please forgive me!
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您尝试过 pygame.image.fromstring() 吗？
注意：由于它是原始数据，因此您需要提前了解一些细节，例如分辨率和颜色深度。
Have you tried
pygame.image.fromstring()?note: since it's raw data, you'll need to know in advance a few details such as the resolution and colour depth.