From f0a5ba7542f14a34d6be361e3c30dce185ced784 Mon Sep 17 00:00:00 2001 From: DRC Date: Fri, 18 Feb 2011 03:21:06 +0000 Subject: [PATCH] "integer forward DCT", not "forward integer DCT" git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.1.x@382 632fc199-4ca6-4c93-a231-07263d6284db --- README-turbo.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/README-turbo.txt b/README-turbo.txt index 540da094..33ed4cc8 100755 --- a/README-turbo.txt +++ b/README-turbo.txt @@ -59,14 +59,14 @@ consumer packages, such as PhotoShop, use restart markers when generating JPEG images, so images generated by those programs will experience this issue. =============================================== -Fast Forward Integer DCT at High Quality Levels +Fast Integer Forward DCT at High Quality Levels =============================================== The algorithm used by the SIMD-accelerated quantization function cannot produce -correct results whenever the fast forward integer DCT is used along with a JPEG +correct results whenever the fast integer forward DCT is used along with a JPEG quality of 98-100. Thus, libjpeg-turbo must use the non-SIMD quantization function in those cases. This causes performance to drop by as much as 40%. -It is therefore strongly advised that you use the slow forward integer DCT +It is therefore strongly advised that you use the slow integer forward DCT whenever encoding images with a JPEG quality of 98 or higher.