python opencv中的倒角匹配错误

Question

I've been trying out various algorithms for my thesis. And now i'm currently focusing in template matching (where the main focus in matching would be the edge). Then I found out about chamfer matching. I'm torn between coding it myself, or using available implementations (which is better). Then I found out about a cpp implementation of the said algorithm. However, I'm encountering weird error. ↓

OpenCV Error: Assertion failed (img.type() == CV_8UC1 && templ.type() == CV_8UC1)
in chamerMatching, file /home/pyimagesearch/Downloads/opencv-2.4.8/modules/contrib/src/chamfermatching.cpp, line 1370
Traceback (most recent call last):
    File "template.py", line 12, in <module> cv2.chamerMatching(template1, queryFrame, 1, 1) cv2.error: 
/home/pyimagesearch/Downloads/opencv-2.4.8/modules/contrib/src/chamfermatching.cpp:1370: 
error: (-215) img.type() == CV_8UC1 && templ.type() == CV_8UC1 in function chamerMatching

i tried to locate the directory /home/pyimagesearch/Downloads/opencv-2.4.8/modules/contrib/src/chamfermatching.cpp (so as to inspect whether i'm missing out on the parameter required for the function call), but to my surprise, there's no opencv-2.4.8 folder under my Downloads folder.

does anyone know what could be the main cause of the error? Your answer would be much appreciated. :) thanks!

Answer 1

I think type function don't return value like cv8uc1 . It should return integer value. You can find list of integer value map which is returned by type function in following page http://ninghang.blogspot.com.tr/2012/11/list-of-mat-type-in-opencv.html?m=1 . Could you change them and try again ?