jimgardener wrote: > hi > i am getting value of a pixel of a greyscale image using PIL's > image.getdata and need to pack it as an int as below > > ie greyvalues > 127 , 56 , 135 , 99 , 102 , 101 , 146 , 112 , 155 , 154 , 112 , 169 > > should become > -4473925, -8289919, -4144960, -5789785, -5592406, -5658199 ,-3684409, > -5131855, -3289651,-3355444, -5131855, -2763307 > > (i got these values using java's BufferedImage class..)I would like to > know if there is a way to do the conversion in python.(.i need 'these > 'for some calculations)
Judging from >>> hex(0x100000000 - 4473925) '0xffbbbbbb' >>> 0xbb 187 -4273925 indeed seems to denote a gray value, but the lighter 187 rather than 127. Are you sure the lists you give belong to the same image? Peter -- http://mail.python.org/mailman/listinfo/python-list
