From 84f2f37680045a167d2c2cc7844c87b8d48e951c Mon Sep 17 00:00:00 2001 From: Kuang Fangjun Date: Sat, 14 Jul 2018 16:14:35 +0800 Subject: [PATCH] remove a useless statement. --- modules/calib3d/src/calibinit.cpp | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/modules/calib3d/src/calibinit.cpp b/modules/calib3d/src/calibinit.cpp index 3e31550240..c2180d73ad 100644 --- a/modules/calib3d/src/calibinit.cpp +++ b/modules/calib3d/src/calibinit.cpp @@ -513,10 +513,6 @@ bool findChessboardCorners(InputArray image_, Size pattern_size, { cvtColor(img, img, COLOR_BGR2GRAY); } - else - { - img.clone(); - } int prev_sqr_size = 0; @@ -578,6 +574,7 @@ bool findChessboardCorners(InputArray image_, Size pattern_size, { if (flags & CALIB_CB_NORMALIZE_IMAGE) { + img = img.clone(); equalizeHist(img, img); }