diff --git a/frameworks/innerkitsimpl/codec/src/image_source.cpp b/frameworks/innerkitsimpl/codec/src/image_source.cpp
index 99fe4a84c4fd9c21bd7bc09d3b61aa83f8a8e0e5..7a83a1333fecdc2fe7474f7f1b61274ac900c86b 100644
--- a/frameworks/innerkitsimpl/codec/src/image_source.cpp
+++ b/frameworks/innerkitsimpl/codec/src/image_source.cpp
@@ -4552,14 +4552,6 @@ static void SetResLogBuffer(sptr<SurfaceBuffer>& baseSptr, sptr<SurfaceBuffer>&
     VpeUtils::SetSbMetadataType(hdrSptr, CM_IMAGE_HDR_VIVID_SINGLE);
 }
 
-static void SetWideGamutBuffer(sptr<SurfaceBuffer>& baseSptr, sptr<SurfaceBuffer>& gainmapSptr,
-    sptr<SurfaceBuffer>& hdrSptr)
-{
-    VpeUtils::SetSbColorSpaceType(baseSptr, CM_SRGB_FULL);
-    VpeUtils::SetSbColorSpaceType(gainmapSptr, CM_SRGB_FULL);
-    VpeUtils::SetSbColorSpaceType(hdrSptr, CM_DISPLAY_BT2020_SRGB);
-}
-
 void ImageSource::SpecialSetComposeBuffer(DecodeContext &baseCtx, sptr<SurfaceBuffer>& baseSptr,
     sptr<SurfaceBuffer>& gainmapSptr, sptr<SurfaceBuffer>& hdrSptr, HdrMetadata& metadata)
 {
@@ -4576,7 +4568,7 @@ void ImageSource::SpecialSetComposeBuffer(DecodeContext &baseCtx, sptr<SurfaceBu
     }
     // wideGamutSdr special process
     if (baseCtx.isCreateWideGamutSdrPixelMap) {
-        SetWideGamutBuffer(baseSptr, gainmapSptr, hdrSptr);
+        VpeUtils::SetSbColorSpaceType(hdrSptr, CM_DISPLAY_BT2020_SRGB);
     }
 }