In our virtualenv we found all we needed to do was: pip uninstall PIL brew install libjpeg pip install PIL which is simpler than some of the above and may be enough for others with this problem too. Although there was an xcode warning on the brew and a setup.py package warning on the reinstall … Read more
Install Pillow pip install Pillow and use as from PIL import Image image=Image.open(‘L_2d.png’) imageBox = image.getbbox() cropped = image.crop(imageBox) cropped.save(‘L_2d_cropped.png’) When you search for boundaries by mask=imageComponents[3], you search only by blue channel.
There are two parts to JPEG quality. The first is the quality setting which you have already set to the highest possible value. JPEG also uses chroma subsampling, assuming that color hue changes are less important than lightness changes and some information can be safely thrown away. Unfortunately in demanding applications this isn’t always true, … Read more
ANTIALIAS was removed in Pillow 10.0.0 (after being deprecated through many previous versions). Now you need to use PIL.Image.LANCZOS or PIL.Image.Resampling.LANCZOS. (This is the exact same algorithm that ANTIALIAS referred to, you just can no longer access it through the name ANTIALIAS.) Reference: Pillow 10.0.0 release notes (with table of removed constants) Simple code example: … Read more
Check if the array is writable with >>> img.flags C_CONTIGUOUS : True F_CONTIGUOUS : False OWNDATA : True WRITEABLE : False ALIGNED : True UPDATEIFCOPY : False If WRITEABLEis false, change it with img.setflags(write=1)
The RGB mode is expecting 8-bit values, so just casting your array should fix the problem: In [25]: image = Image.fromarray(pixels.astype(‘uint8’), ‘RGB’) …: …: # Print out the pixel values …: print image.getpixel((0, 0)) …: print image.getpixel((0, 1)) …: print image.getpixel((1, 0)) …: print image.getpixel((1, 1)) …: (255, 0, 0) (0, 0, 255) (0, 255, … Read more
Did you install the dependencies for pillow ? You can install them by $ sudo apt-get build-dep python-imaging $ sudo apt-get install libjpeg8 libjpeg62-dev libfreetype6 libfreetype6-dev
If you use homebrew, you can install the PIL with just brew install pil. You may then need to add the install directory ($(brew –prefix)/lib/python2.7/site-packages) to your PYTHONPATH, or add the location of PIL directory itself in a file called PIL.pth file in any of your site-packages directories, with the contents: /usr/local/lib/python2.7/site-packages/PIL (assuming brew –prefix … Read more
The following script creates a transparent GIF with a red circle drawn in the middle: from PIL import Image, ImageDraw img = Image.new(‘RGBA’, (100, 100), (255, 0, 0, 0)) draw = ImageDraw.Draw(img) draw.ellipse((25, 25, 75, 75), fill=(255, 0, 0)) img.save(‘test.gif’, ‘GIF’, transparency=0) and for PNG format: img.save(‘test.png’, ‘PNG’)
To me worked this on xubuntu: from PIL import Image,ImageDraw,ImageFont # sample text and font unicode_text = u”Hello World!” font = ImageFont.truetype(“/usr/share/fonts/truetype/freefont/FreeMono.ttf”, 28, encoding=”unic”) # get the line size text_width, text_height = font.getsize(unicode_text) # create a blank canvas with extra space between lines canvas = Image.new(‘RGB’, (text_width + 10, text_height + 10), “orange”) # draw … Read more