bug: -215:Assertion failed)

[franztao]

latex {'request_id': 'c590d176a336a9eaa488383fcd8f78c4', 'error': "OpenCV(4.2.0) /io/opencv/modules/imgproc/src/resize.cpp:4048: error: (-215:Assertion failed) inv_scale_x > 0 in function 'resize'\n", 'error_info': {'id': 'sys_exception', 'message': "OpenCV(4.2.0) /io/opencv/modules/imgproc/src/resize.cpp:4048: error: (-215:Assertion failed) inv_scale_x > 0 in function 'resize'\n"}}