c++ - Assertion failed (image.type() == CV_32F). GPU convolution. OpenCV -

i got error when tried use gpu convolution.

opencv error: assertion failed (image.type() == cv_32f) in cv::gpu::convolve, file d:\opencv\sources\modules\gpu\src\imgproc.cpp, line 1413

i've converted image type cv_32 have issue. have similar issue when using gpu::filter2d.

(i have no problem using sobel or gaussianblur in gpu.)

however, when in main:

int a=image.type(); value of 21. not cv_32f.

please let me know how resolve issue! need help!! thank you!!!

using namespace cv; using namespace std;  int main() {   // read kernel text file int kernel_size=15; ifstream fin; fin.open ("psf00.txt");   float kernel0[15][15]; (int i=0; i<kernel_size; i++) {     (int j=0; j<kernel_size; j++)     {         fin >> kernel0[i][j];     } }         // save 2d kernel array mat format mat kernel = mat(kernel_size, kernel_size, cv_32f, kernel0);      // load image mat image = imread("blurry_00.jpg");         image.convertto(image, cv_32f);           // gpu gpu::gpumat gpu_input, gpu_input1, gpu_output, gpu_kernel;  gpu_input.upload(image); gpu_kernel.upload(kernel);  gpu_input.convertto(gpu_input1, cv_32f);      gpu::convolve(gpu_input1, gpu_kernel, gpu_output);    // download image gpu cpu mat dst(gpu_output);                 dst.convertto(dst, cv_8u);  // create window display. namedwindow( "display window (gpu)", window_autosize ); imshow( "display window (gpu)", dst );  waitkey(0); return 0; 

i think you've got answer, 21 cv_32f.

   #define cv_maketype(depth,cn) (cv_mat_depth(depth) + (((cn)-1) << cv_cn_shift))     #define cv_8s   1  //depth     #define cv_32f  5  //cn     #define cv_mat_depth(flags)     ((flags) & cv_mat_depth_mask)      0x21 -> cn = 5, depth = 1