Draw text into a temporary blank image, rotate that, then paste that onto the original image. You could wrap up the steps in a function. Good luck figuring out the exact coordinates to use – my cold-fogged brain isn’t up to it right now. This demo writes yellow text on a slant over an image: … Read more
If you have numpy, it provides a much, much faster way to operate on PIL images. E.g.: import Image import numpy as np im = Image.open(‘test.png’) im = im.convert(‘RGBA’) data = np.array(im) # “data” is a height x width x 4 numpy array red, green, blue, alpha = data.T # Temporarily unpack the bands for … Read more
Scaling to Black and White Convert to grayscale and then scale to white or black (whichever is closest). Original: Result: Pure Pillow implementation Install pillow if you haven’t already: $ pip install pillow Pillow (or PIL) can help you work with images effectively. from PIL import Image col = Image.open(“cat-tied-icon.png”) gray = col.convert(‘L’) bw = … Read more
I’d start by using glob: from PIL import Image import glob image_list = [] for filename in glob.glob(‘yourpath/*.gif’): #assuming gif im=Image.open(filename) image_list.append(im) then do what you need to do with your list of images (image_list).
I know it’s an old question, but I had the same problem and solved it with: img = img[:,:,::-1]
Remember to call buf.seek(0) so Image.open(buf) starts reading from the beginning of the buf: import io from PIL import Image import matplotlib.pyplot as plt plt.figure() plt.plot([1, 2]) plt.title(“test”) buf = io.BytesIO() plt.savefig(buf, format=”png”) buf.seek(0) im = Image.open(buf) im.show() buf.close()
This can be accomplished with an Image instance’s paste method: from PIL import Image img = Image.open(‘/path/to/file’, ‘r’) img_w, img_h = img.size background = Image.new(‘RGBA’, (1440, 900), (255, 255, 255, 255)) bg_w, bg_h = background.size offset = ((bg_w – img_w) // 2, (bg_h – img_h) // 2) background.paste(img, offset) background.save(‘out.png’) This and many other PIL … Read more
This appears to do the trick: from PIL import Image bottom = Image.open(“a.png”) top = Image.open(“b.png”) r, g, b, a = top.split() top = Image.merge(“RGB”, (r, g, b)) mask = Image.merge(“L”, (a,)) bottom.paste(top, (0, 0), mask) bottom.save(“over.png”)
Make your background RGB, not RGBA. And remove the later conversion of the background to RGB, of course, since it’s already in that mode. This worked for me with a test image I created: from PIL import Image im = Image.open(r”C:\jk.png”) bg = Image.new(“RGB”, im.size, (255,255,255)) bg.paste(im,im) bg.save(r”C:\jk2.jpg”)
Think of BytesIO as a file object, after you finish writing the image, the file’s cursor is at the end of the file, so when Image.open() tries to call output.read(), it immediately gets an EOF. You need to add a output.seek(0) before passing output to Image.open().