Which is better PIL or OpenCV?

OpenCV is written in C and C++ whereas PIL is written using Python and C, hence just from this information, OpenCV seems faster. While dealing with 1000s of images for data extraction, the processing speed 🚀 matters.

How do I sum two images in Python?

Image Addition You can add two images by OpenCV function, cv2. add() or simply by numpy operation, res = img1 + img2 . Both images should be of same depth and type, or second image can just be a scalar value.

Is PIL a RGB or BGR?

The library encourages adding support for newer formats in the library by creating new file decoders. The basic difference between OpenCV image and PIL image is OpenCV follows BGR color convention and PIL follows RGB color convention and the method of converting will be based on this difference.

What can I use instead of cv2?

There are four libraries that are usually used for loading images.

  • Matplotlib — plt.imread()
  • OpenCV — cv2.imread()
  • Pillow — Image.open()
  • scikit-image — io.imread()

How do you combine images with PIL?

Merging two images

  1. Create image object for the required images using the open() function.
  2. While merging two images, you need to make sure that both images are of same size.
  3. Create an empty image using the Image.
  4. Paste the images using the paste() function.

How do I combine two images in OpenCV?

You can add two images with the OpenCV function, cv. add(), or simply by the numpy operation res = img1 + img2. Both images should be of same depth and type, or the second image can just be a scalar value.

How do I know if my image is RGB or BGR Python?

If you are reading in the image file, or you have access to the code that reads in the file, know it is:

  1. BGR order if you used cv2. imread()
  2. RGB order if you used mpimg. imread() (assuming import matplotlib. image as mpimg )

What does IO Imread do?

io. imread() function. We create a window that automatically scales the displayed image with matplotlib and calling show() on the global figure object. colour images can be transformed to grayscale using skimage.

How do I install Python Imaging library PIL?

PIL is an abbreviation of Python Imaging Library and it adds image processing to Python….Open Terminal (Applications/Terminal) and run:

  1. xcode-select -install (You will be prompted to install the Xcode Command Line Tools)
  2. sudo easy_install pip.
  3. sudo pip install pillow.
  4. pip install pillow.