我如何可以使用Python图像库创建位图 [英] how can I use the python imaging library to create a bitmap

问题描述

我在Python中的二维表，我想使数据的图形照片。也许由M列电网n，其中每平方米是取决于我的2D列表中的值不同的颜色灰色的。

I have a 2d list in python, and I want to make a graphical pic of the data. Maybe a n by m column grid where each square is a different color of grey depending on the value in my 2d list.

不过，我似乎无法弄清楚如何使用PIL创建图像。这是一些我一直在搞乱东西：

However, I can't seem to figure out how to create images using PIL. This is some of the stuff I've been messing with:

def createImage():
    img = Image.new('L', (100,100), 'white')
    img.save('test.bmp')

    for i in range(0,15):
        for j in range(0,15):
            img.putpixel((i,j), (255,255,255))

不过，我得到一个错误说一个整数需要（在用的putpixel线的问题）

However, I'm getting an error saying that an integer is required (problem on the line with the putpixel)

推荐答案

这是从<一个href=\"http://en.wikibooks.org/wiki/Python_Imaging_Library/Editing_Pixels\">http://en.wikibooks.org/wiki/Python_Imaging_Library/Editing_Pixels

import Image

img = Image.new( 'RGB', (255,255), "black") # create a new black image
pixels = img.load() # create the pixel map

for i in range(img.size[0]):    # for every pixel:
    for j in range(img.size[1]):
        pixels[i,j] = (i, j, 100) # set the colour accordingly

img.show()

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