About vectorization of Warping code

[lavz94]

Hello ybhan great respository , I have changed some part of your code like Cylindrical warping to vectorized ones and achieved significant speedup ,but i could not vectorize this part of your code . In stitch.py ,Line number 38

for i in range(-y_min, h2 - y_min):  
        for j in range(-x_min, w2 - x_min):
            if np.any(img2[i + y_min][j + x_min]):
                img_output[i][j] = img2[i + y_min][j + x_min]

Any ideas ?

[ybhan]

Hi @lavz94 , thank you for reaching out. I see the difficulty on vectorizing this part. To achieve better image quality, it "inserts" part of img2 into img_output, overriding some existing values in img_output, which is different from a simple concatenation. Unfortunately, I don't have good ideas for vectorization at present, as I am a bit rusty on related libraries after nearly 3 years. Please feel free to let me know if you have improvements on this or any part of the code. You are also welcome to raise issues or pull requests. Thanks!

[Zumbalamambo]

+1