python通过pil模块将raw图片转换成png图片的方法

本文实例讲述了python通过pil模块将raw图片转换成png图片的方法。分享给大家供大家参考。具体分析如下：

python通过pil模块将raw图片转换成png图片，pil中包含了fromstring函数可以按照指定模式读取图片信息然后进行保存。

rawData = open("foo.raw" 'rb').read()
imgSize = (x,y)
# Use the PIL raw decoder to read the data.
# the 'F;16' informs the raw decoder that we are reading 
# a little endian,unsigned integer 16 bit data.
img = Image.fromstring('L',imgSize,rawData,'raw','F;16')
img.save("foo.png")

其中Image.fromstring函数的第一个参数具体含义如下

1 (1-bit pixels,black and white,stored with one pixel per byte)
L (8-bit pixels,black and white)
P (8-bit pixels,mapped to any other mode using a colour palette)
RGB (3x8-bit pixels,true colour)
RGBA (4x8-bit pixels,true colour with transparency mask)
CMYK (4x8-bit pixels,colour separation)
ycbcr (3x8-bit pixels,colour video format)
I (32-bit signed integer pixels)
F (32-bit floating point pixels)

希望本文所述对大家的Python程序设计有所帮助。