Changes to black compression and saturation controls. Black compression from 0-50 acts the same as 0-100 on the previous version, compressing dark tones without crushing blacks. 50-100 then starts crushing blacks until by 100 on the slider, all tones up to the set black point are sent to zero. In the new saturation control, negative values of the slider set a linear curve rather than an inverted S curve, and smoothly decrease saturation to zero across the board.

winclude/libiptcdata/iptc-jpeg.h

@@ -0,0 +1,45 @@
+/* iptc-jpeg.h
+ *
+ * Copyright <20> 2005 David Moore <dcm@acm.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details. 
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __IPTC_JPEG_H__
+#define __IPTC_JPEG_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#include <stdio.h>
+#include <libiptcdata/iptc-data.h>
+
+int iptc_jpeg_read_ps3 (FILE * infile, unsigned char * buf, unsigned int size);
+int iptc_jpeg_ps3_find_iptc (const unsigned char * ps3,
+		unsigned int ps3_size, unsigned int * iptc_len);
+
+int iptc_jpeg_ps3_save_iptc (const unsigned char * ps3, unsigned int ps3_size,
+		const unsigned char * iptc, unsigned int iptc_size,
+		unsigned char * buf, unsigned int size);
+int iptc_jpeg_save_with_ps3 (FILE * infile, FILE * outfile,
+		const unsigned char * ps3, unsigned int ps3_size);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __IPTC_JPEG_H__ */