質問編集履歴
2
タイトル変更
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@@ -1,1 +1,1 @@
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OpenCVを用いたGPU処理
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OpenCVを用いたGPU処理の際のプログラムエラー(Expected Ptr<cv::UMat> for argument)
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body
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File without changes
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コードの修正
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@@ -32,10 +32,31 @@
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face = cascade.detectMultiScale(gray, scaleFactor=1.1, minNeighbors=3, minSize=(30, 30))
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for (x, y, w, h) in face:
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###モザイク処理
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###モザイク処理
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frame[y:y+h, x:x+w] = mosaic(frame[y:y+h, x:x+w], 0.01)
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img_gpu_dst2 = frame
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frame = img_gpu_dst2.download()
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writer.write(frame)
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# モザイク処理
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def mosaic(img, alpha):
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w = img.shape[1]
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h = img.shape[0]
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48
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### Run with GPU
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img_gpu_src = cv2.cuda_GpuMat()
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img_gpu_dst = cv2.cuda_GpuMat()
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# 最近傍法で縮小→拡大することでモザイク加工、GPU処理
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img_gpu_src.upload(img)
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img_gpu_dst = cv2.cuda.resize(img_gpu_src, (int(w*alpha), int(h*alpha)))
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img_gpu_dst = cv2.cuda.resize(img_gpu_dst, (w, h), interpolation=cv2.INTER_NEAREST)
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img = img_gpu_dst.download()
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return img
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```
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