Warp perspective and Transform OpenCV python
In this tutorial, I will show you image warping in OpenCV. Perspective view warping is to convert or perspective correction of images from angle to birds eye view transform. To convert image to birds eye view I will be using warp perspective OpenCV function.
Convert image to birds eye view
Above image is showing what we are going to do in this article. This is called birds eye view transform.
# Output image size
width, height = 250,350
# Desired points value in output images
converted_red_pixel_value = [0,0]
converted_green_pixel_value = [width,0]
converted_black_pixel_value = [0,height]
converted_blue_pixel_value = [width,height]
# Convert points
converted_points = np.float32([converted_red_pixel_value,converted_green_pixel_value,
converted_black_pixel_value,converted_blue_pixel_value])
Perspective correction OpenCV python
As we have defined all points now let’s do perspective correction or birds eye view transform.
# perspective transform opencv
perspective_transform = cv2.getPerspectiveTransform(point_matrix,converted_points)
# perspective view warping opencv
img_Output = cv2.warpPerspective(img,perspective_transform,(width,height))
