如何使用python將原始圖像轉換爲png

我試圖用python將原始圖像數據轉換爲png。我很新的python，尤其是圖像處理...如何使用python將原始圖像轉換爲png

原始文件是一個16位灰度圖像。

正如我已經掃描了論壇，我想出了以下解決方案：

from PIL import Image, ImageFilter 
import numpy as np 
from scipy import ndimage, misc 


rawfile = np.fromfile('test.raw', dtype=np.int16) 

rawfile.shape = (1025,1025) 
imgSize = (1025,1025) 

img = Image.fromstring('L', imgSize, rawfile, 'raw', 'F;16') 
img.save("rawData.png")

但我不斷收到以下錯誤：

Traceback (most recent call last): 
    File "****\Programs\Python 2.7.6\readraw\readraw.py", line 11, in <module> 
    img = Image.fromstring('L', imgSize, rawfile, 'raw', 'F;16') 
    File "****\Programs\Python 2.7.6\lib\site-packages\PIL\Image.py", line 1835, in fromstring 
    return frombytes(*args, **kw) 
    File "****\Programs\Python 2.7.6\lib\site-packages\PIL\Image.py", line 1822, in frombytes 
    im.frombytes(data, decoder_name, args) 
    File "****\Programs\Python 2.7.6\lib\site-packages\PIL\Image.py", line 608, in frombytes 
    d = _getdecoder(self.mode, decoder_name, args) 
    File "****\Programs\Python 2.7.6\lib\site-packages\PIL\Image.py", line 390, in _getdecoder 
    return decoder(mode, *args + extra) 
ValueError: unknown raw mode

有人能向我解釋爲什麼原始模式未知？我檢查了Docs，並且據我瞭解這個主題，PILLOW lib應該帶這個？！

問候

謝謝你們的幫助！

我改變了我的代碼，現在它似乎工作：

from PIL import Image, ImageFilter 
import numpy as np 
from scipy import ndimage, misc 


rawfile = np.fromfile('test.raw', "uint16") 

rawfile.shape = (1025,1025) 
misc.imsave("test.png", rawfile)

來源

2014-02-21 user3338564