diff --git a/modules/imgproc/perf/perf_matchTemplate.cpp b/modules/imgproc/perf/perf_matchTemplate.cpp index bf5e687fa6..82f74c3441 100644 --- a/modules/imgproc/perf/perf_matchTemplate.cpp +++ b/modules/imgproc/perf/perf_matchTemplate.cpp @@ -77,7 +77,7 @@ PERF_TEST_P(ImgSize_TmplSize_Method, matchTemplateBig, method == TM_SQDIFF_NORMED || method == TM_CCOEFF_NORMED; double eps = isNormed ? 1e-6 - : 255 * 255 * tmpl.total() * 1e-6; + : 255.0 * 255.0 * (double)tmpl.total() * 1e-6; SANITY_CHECK(result, eps); }