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--- ufraw [2010/03/18 05:14] – created suapapa
+++ ufraw [2013/08/03 05:04] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
   *[[http://sourceforge.net/projects/ufraw/develop|ufraw]] in sf.net
+  *[[http://jens.triq.net/thumbnail-spec/index.html|The Thumbnail management specification proposed specification for storing file thumbnails]] from freedesktop.org
+  *raw image thumbnailer in gconf
+/desktop/gnome/thumbnailers/application@x-ufraw/command
+<code>
+/usr/bin/ufraw-batch --embedded-image --out-type=png --size=%s %i --overwrite --silent --output=%o
+</code>
+<code bash>
+$ ufraw-batch --embedded-image --out-type=png \
+--size=256x256 --output=ufraw_thumb.png IMGP0206.PEF
+</code>
+====== 원인 ======
+다음 명령어로 뽑아낸 Exif thumbnail이 변경 전의 사진으로 들어가 있음 :(
+<code bash>
+exiv2 -e t IMGP0206.jpg
+</code>
+IMGP0206-thumb.jpg 형식으로 추출됨. 크기는 160x160
+====== 수정안 ======
+김프로 변환 후 저장한 이미지에서 추출시에는
+<code bash>
+exiv2 -e t IMGP0206_gimp.jpg
+</code>
+x147 사이즈로 정상 썸네일 생성 확인
 ====== using git ======
 <code bash>
@@ Line 9: / Line 34: @@
 $ git branch [fuction-to-develope]
 ....
+</code>
+====== exif thumbnauil fix ======
+본래의 코드
+ufraw_writer.c
+<code c>
+ufraw_exif_prepare_output(uf);
+jpeg_write_marker(&cinfo, JPEG_APP0+1, uf->outputExifBuf, uf->outputExifBufLen);
+ufraw_write_image_data(uf, &cinfo, &Crop, 8, grayscaleMode, jpeg_row_writer);
+...
+</code>
+ufraw 썸네일러에서 사용하는 코드
+<code c>
+int ufraw_load_raw(ufraw_data *uf)
+...
+    if (uf->conf->embeddedImage) {
+	dcraw_image_data thumb;
+	if ( (status=dcraw_load_thumb(raw, &thumb))!=DCRAW_SUCCESS ) {
+	    ufraw_message(status, raw->message);
+	    return status;
+	}
+	uf->thumb.height = thumb.height;
+	uf->thumb.width = thumb.width;
+	return ufraw_read_embedded(uf);
+    }
+...
 </code>