I have plenty images to process and calculate the frost area/ volume on a heat exchanger. First, I have some local images and I used matlab to crop them to a certain size that I have only two fins. Then, I want to calculte the triangle area between fins and tubes because I want to calculate the frost area = the difference of this trangle area between images. Thanks to this forum, I've been able to crop the images, deblur the images, covert them to binary image, find the closed area/ objects in the image, label the objects and calculate the areas.
However, there are about 30 objects in each image and I just need two of them in the central part (The green and yellow triangles, for example). How can I select and output the information, like shape, areas, centroids of those two objects? Can I achieve this based on the boundary limitation of the initial triangle region? Also, How can I plot the difference of image 1 and 2, so that I can show the frost thickness?
Thank you in advance!