I am grabbing an image from a camera (or reading an image file) and processing the image to find the centroid. I am then converting the image to a grey scale and plotting the image on an intensity graph to convert intensitys to colors. The images are correct and upright. However, when I read the pixel positions the pixel position increases with an increase in x but decreases with an increase in Y (ref at lower left of image) and when I plot the image on an intensity graph Y is inverted and X is normal. How cam I correct this?
you may solve this problem by evaluation of Y position using this formula:
Ynew=Ymax-Yi (i is the cuurent pixel value).
Does it help?
Waleed El-Badry MSc.,MCPD, ISTQB Certified Tester Assistant Lecturer Mechatronics Department Faculty of Engineering Misr University for Science & Technology
Here's an easier method. Invert the Y axis of the intensity graph. Right now it is zero to N. Double click on N and type a zero. This will flip the axis.
