hi
am a beginner in python and PIL .I need to read an RGB 8 bit image
(am using jpeg )and pack the rgb color values into a double value so i
can store the image as a list of pixelvalues.From my application i
should be able to call rgbimage1.getpixellist() to retrieve the double
values of an image.
Do i need to create a new class for this?I made something like
class myrgbimage:
def __init__(self,filename):
def _readimage(self):
im=Image.open(filename)
self._readImage(filename)
self._wd,self._ht=im.size
for y in range(self._ht):
for x in range(self._wd):
r,g,b=im.getpixel((x,y))
pval=self.rgbTodoubleval((r,g,b))
self._pixellist.append(pval)
def rgbTodoubleval(self,(r,g,b)):
alpha=255
pixelvalue=(alpha<<24)|(r<<16 )|( g<<8) | b
return pixelvalue
the way i am currently using this is to create instances using
filenames and then retrieving the list of pixelvalues in the image.
like
for z in imagefilenamelist:
myimage=myrgbimage(z)
imagelist.append(z)
so later on i can take each instance and get its width,height and
pixellist and work with them..anyway the code takes too much time and
I wish to know if i can get these 'packed pixelvalues' straight away
without using the above class
jim
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