def loadFromPPM(self, filename, filter, threshhold):
blob.Bitmap_del(self.bitmap)
self.bitmap = blob.bitmap_from_ppm(filename, filter, threshold)
def loadFromPPM(self, filename, filter, threshhold):
blob.Bitmap_del(self.bitmap)
self.bitmap = blob.bitmap_from_ppm(filename, filter, threshold)
def saveToPGM(self, filename, levels=65535):
"""
levels is the number of gray levels to represent.
The default is the maximum.
"""
blob.Bitmap_write_to_pgm(self.bitmap, filename, levels)
def bitmap_from_V4LGrabber(v4lgrab, filter, threshold):
bmp = blob.bitmap_from_8bitBGRArray(v4lgrab.cbuf, v4lgrab.width, v4lgrab.height, filter, threshold)
return bmp
if __name__ == "__main__":
# Examples of how to use blob stuff.
# make a bitmap from cap.ppm, filtering by brightness (luminosity)
# with a threshold of .3 (everthing with a brightness of over .3 will be
# true.
bmp = blob.bitmap_from_ppm("cap.ppm", blob.FILTER_BRIGHTNESS, 0.3)
# now save it to file.
blob.Bitmap_write_to_pgm(bmp, "python.pgm", 1)
blobdata = blob.Blobdata_init(bmp)
# clean it up
# blob.Bitmap_del(bmp)
"""
levels is the number of gray levels to represent.
The default is the maximum.
"""
blob.Bitmap_write_to_pgm(self.bitmap, filename, levels)
def bitmap_from_V4LGrabber(v4lgrab, filter, threshold):
bmp = blob.bitmap_from_8bitBGRArray(v4lgrab.cbuf, v4lgrab.width,
v4lgrab.height, filter, threshold)
return bmp
if __name__ == '__main__':
#Examples of how to use blob stuff.
#make a bitmap from cap.ppm, filtering by brightness (luminosity)
#with a threshold of .3 (everthing with a brightness of over .3 will be
#true.
bmp = blob.bitmap_from_ppm("cap.ppm", blob.FILTER_BRIGHTNESS, 0.3)
#now save it to file.
blob.Bitmap_write_to_pgm(bmp, "python.pgm", 1)
blobdata = blob.Blobdata_init(bmp)
#clean it up
#blob.Bitmap_del(bmp)
