Mobilenet SSD V1 Get Different Results on Same Image about play_with_tflite HOT 2 CLOSED

One possible reason is you reuse the same input image object (Mat) for the 1st and the 2nd inference. The result (such as inference time, bounding boxes, etc.) is drawn onto the input image.
So, the input images for the 1st and 2nd inference can be difference. It can be happen even if you store the Mat object like this.

Mat mat_original;
mat_original = get original input data;
Mat mat_1st = mat_original;
Mat mat_2nd = mat_original;
ImageProcessorProcess(mat_1st.getNativeObjAddr());    <- pixel data (of mat_original, mat_1st, mat_2nd) is over written
ImageProcessorProcess(mat_2nd.getNativeObjAddr());

I logged the input data and confirmed the input data is same.

Did you confirm all the input pixel data (not just the address of data) is the same when calling ImageProcessorProcess ? I can check if you share your code.

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Thanks for your kind reply.
The root cause is exact as you said. Results were drawn on the frame due to the sync of detection thread and render thread.

I compare some lines of the input frames, not for each pixel. It's my bad.

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