cv2.cuda.minMaxLoc Problem

Gaming and Visualization Technologies Video Processing & Optical Flow
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Hello,

I am trying to use the “cv2.cuda.minMaxLoc()” function but I am getting an error.

My code;

import cv2
import numpy as np


cpu_mat = np.random.random((512, 512)).astype(np.float32)

print("Example data of CPU: ", cpu_mat[0, 0])


gpu_mat = cv2.cuda_GpuMat()
gpu_mat.upload(cpu_mat)


min_val,max_val,min_loc,max_loc= cv2.cuda.minMaxLoc(gpu_mat)




print(f"Min Değer: {min_val}, Konum: {min_loc}")
print(f"Max Değer: {max_val}, Konum: {max_loc}")

downloaded_mat = gpu_mat.download()

and error code;

Example data of CPU:  0.93017995
Traceback (most recent call last):
  File "/home/nanodev/Desktop/cuda2.py", line 14, in <module>
    min_val,max_val,min_loc,max_loc= cv2.cuda.minMaxLoc(gpu_mat)
cv2.error: OpenCV(4.5.4) :-1: error: (-5:Bad argument) in function 'minMaxLoc'
> Overload resolution failed:
>  - minMaxLoc() missing required argument 'minVal' (pos 2)
>  - minMaxLoc() missing required argument 'minVal' (pos 2)
>  - minMaxLoc() missing required argument 'minVal' (pos 2)

I am using Jetson orin nano devoloper kit and my system information is as follows.

image
image727×447 72.8 KB

I don’t have any problems when I don’t use cuda. ​​I only have problems with cuda. ​​I’ve added my code that works without cuda below;

import cv2
import numpy as np


cpu_mat = np.random.random((512, 512)).astype(np.float32)

print("Example data of CPU: ", cpu_mat[0, 0])



min_val,max_val,min_loc,max_loc= cv2.minMaxLoc(cpu_mat)




print(f"Min Değer: {min_val}, Konum: {min_loc}")
print(f"Max Değer: {max_val}, Konum: {max_loc}")

Can you support me with my problem?