1. Sample an Image in Python 2. Read an Image and obtain it's complement in Python 3. Convert an Image from in python - RGB to GRAY - RGB to HSV - HSV to GRAY - RGB to CB - RGB to Binary code in python
Question
- Sample an Image in Python
- Read an Image and obtain it's complement in Python
- Convert an Image from in python
- RGB to GRAY
- RGB to HSV
- HSV to GRAY
- RGB to CB
- RGB to Binary code in python
Solution
Sure, here is how you can do these tasks using Python and OpenCV library:
- Sample an Image in Python:
import cv2
image = cv2.imread('image.jpg') # replace with your image path
- Read an Image and obtain its complement in Python:
import cv2
image = cv2.imread('image.jpg', cv2.IMREAD_COLOR)
complement_image = cv2.bitwise_not(image)
- Convert an Image in Python:
- RGB to GRAY:
gray_image = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)- RGB to HSV:
hsv_image = cv2.cvtColor(image, cv2.COLOR_BGR2HSV)- HSV to GRAY:
hsv_image = cv2.cvtColor(image, cv2.COLOR_BGR2HSV) gray_image = cv2.cvtColor(hsv_image, cv2.COLOR_BGR2GRAY)- RGB to YCrCb (I'm assuming CB is YCrCb):
ycrcb_image = cv2.cvtColor(image, cv2.COLOR_BGR2YCrCb)- RGB to Binary:
gray_image = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY) ret, binary_image = cv2.threshold(gray_image, 127, 255, cv2.THRESH_BINARY)
Please replace 'image.jpg' with the path to the image you want to process. Also, note that OpenCV reads images in BGR format by default, not RGB. So, the conversions are from BGR to the other color spaces, not RGB.
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