From 7e8f2cf503172f9ad1168e64e6091a5a99d38d0b Mon Sep 17 00:00:00 2001
From: Luna Kim <177369799+luna-y-kim@users.noreply.github.com>
Date: Thu, 30 Jul 2026 00:32:39 -0700
Subject: [PATCH] fix(IBA): reorient() cases for transpose and transverse

Orientations 5 and 7 were swapped: case 5 produced transverse and case 7
produced transpose. Fix both cases.

Also, fix the orientation labels for 6 and 8 in the metadata conventions
docs.

Fixes #4661

Signed-off-by: Luna Kim <177369799+luna-y-kim@users.noreply.github.com>
---
 src/doc/stdmetadata.rst                    | 4 ++--
 src/libOpenImageIO/imagebufalgo_orient.cpp | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/doc/stdmetadata.rst b/src/doc/stdmetadata.rst
index 17ea3e2a87..ebacaadff0 100644
--- a/src/doc/stdmetadata.rst
+++ b/src/doc/stdmetadata.rst
@@ -89,9 +89,9 @@ Display hints
      3   rotated :math:`180^\circ` (bottom to top, right to left)
      4   flipped vertically (bottom to top, left to right)
      5   transposed (left to right, top to bottom)
-     6   rotated :math:`90^\circ` clockwise (right to left, top to bottom)
+     6   rotated :math:`90^\circ` counter-clockwise (right to left, top to bottom)
      7   transverse (right to left, bottom to top)
-     8   rotated :math:`90^\circ` counter-clockwise (left to right, bottom to top)
+     8   rotated :math:`90^\circ` clockwise (left to right, bottom to top)
     ===  ==========================================================================
 
 .. option:: "PixelAspectRatio" : float
diff --git a/src/libOpenImageIO/imagebufalgo_orient.cpp b/src/libOpenImageIO/imagebufalgo_orient.cpp
index fb1e656ce8..a3fc0066d3 100644
--- a/src/libOpenImageIO/imagebufalgo_orient.cpp
+++ b/src/libOpenImageIO/imagebufalgo_orient.cpp
@@ -362,7 +362,7 @@ ImageBufAlgo::reorient(ImageBuf& dst, const ImageBuf& src, int nthreads)
     case 3: ok = ImageBufAlgo::rotate180(dst, src, ROI(), nthreads); break;
     case 4: ok = ImageBufAlgo::flip(dst, src, ROI(), nthreads); break;
     case 5:
-        ok = ImageBufAlgo::rotate270(tmp, src, ROI(), nthreads);
+        ok = ImageBufAlgo::rotate90(tmp, src, ROI(), nthreads);
         if (ok)
             ok = ImageBufAlgo::flop(dst, tmp, ROI(), nthreads);
         else
@@ -370,7 +370,7 @@ ImageBufAlgo::reorient(ImageBuf& dst, const ImageBuf& src, int nthreads)
         break;
     case 6: ok = ImageBufAlgo::rotate90(dst, src, ROI(), nthreads); break;
     case 7:
-        ok = ImageBufAlgo::flip(tmp, src, ROI(), nthreads);
+        ok = ImageBufAlgo::flop(tmp, src, ROI(), nthreads);
         if (ok)
             ok = ImageBufAlgo::rotate90(dst, tmp, ROI(), nthreads);
         else