diff --git a/openVulkanoCpp/AR/Provider/Playback/ArPlaybackReader.cpp b/openVulkanoCpp/AR/Provider/Playback/ArPlaybackReader.cpp
index b99b168..d8705f6 100644
--- a/openVulkanoCpp/AR/Provider/Playback/ArPlaybackReader.cpp
+++ b/openVulkanoCpp/AR/Provider/Playback/ArPlaybackReader.cpp
@@ -36,7 +36,9 @@ namespace OpenVulkano::AR::Playback
 		}
 		else if (img.channels == 1)
 		{
-			//TODO handle grayscale
+			if (!img.data) img.Allocate();
+
+			tjDecompress2(jpegDecompressor, compressedImage, jpegSize, img.data, img.cols, 0/*pitch*/, img.rows, TJPF_GRAY, TJFLAG_FASTDCT);
 		}
 		else if (img.channels != 0)
 		{