OpenCV giving wrong color to colored images on loading

by

OpenCV uses BGR as its default colour order for images, matplotlib uses RGB. When you display an image loaded with OpenCv in matplotlib the channels will be back to front.

The easiest way of fixing this is to use OpenCV to explicitly convert it back to RGB, much like you do when creating the greyscale image.

RGB_img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)

And then use that in your plot.

More Related Contents:

  1. Python OpenCV Color Tracking
  2. Detect text region in image using Opencv
  3. Detect image orientation angle based on text direction
  4. OpenCV: Choosing HSV thresholds for color filtering
  5. Get pixel’s RGB using PIL
  6. OpenCV Error: (-215)size.width>0 && size.height>0 in function imshow
  7. how to convert an RGB image to numpy array?
  8. Convert RGB color to English color name, like ‘green’ with Python
  9. Python OpenCV load image from byte string
  10. Detect and visualize differences between two images with OpenCV Python
  11. OpenCV: “[ WARN:0] terminating async callback” when attempting to take a picture
  12. Crop Rectangle returned by minAreaRect OpenCV [Python]
  13. Python – Find dominant/most common color in an image
  14. How to crop the internal area of a contour?
  15. How to resize an image with OpenCV2.0 and Python2.6
  16. HSV to RGB Color Conversion
  17. how to remove background of images in python
  18. How to copy a image region using opencv in python?
  19. Equivalent of copyTo in Python OpenCV bindings?
  20. Python – Detect a QR code from an image and crop using OpenCV
  21. Python OpenCV2 (cv2) wrapper to get image size?
  22. module’ object has no attribute ‘drawMatches’ opencv python
  23. Region of Interest opencv python
  24. Irregular shape detection and measurement in python opencv
  25. python imshow, set certain value to defined color
  26. How to find the RED color regions using OpenCV? [duplicate]
  27. Python 3: I am trying to find find all green pixels in an image by traversing all pixels using an np.array, but can’t get around index error
  28. OpenCV & Python – Image too big to display
  29. Square detection in image
  30. Remove spurious small islands of noise in an image – Python OpenCV

Leave a Comment