summaryrefslogtreecommitdiff
path: root/include/im_format_ecw.h
diff options
context:
space:
mode:
authorscuri <scuri>2008-10-17 06:10:15 +0000
committerscuri <scuri>2008-10-17 06:10:15 +0000
commit5a422aba704c375a307a902bafe658342e209906 (patch)
tree5005011e086bb863d8fb587ad3319bbec59b2447 /include/im_format_ecw.h
First commit - moving from LuaForge to SourceForge
Diffstat (limited to 'include/im_format_ecw.h')
-rw-r--r--include/im_format_ecw.h93
1 files changed, 93 insertions, 0 deletions
diff --git a/include/im_format_ecw.h b/include/im_format_ecw.h
new file mode 100644
index 0000000..701bac3
--- /dev/null
+++ b/include/im_format_ecw.h
@@ -0,0 +1,93 @@
+/** \file
+ * \brief Register the ECW Format
+ *
+ * See Copyright Notice in im_lib.h
+ */
+
+#ifndef __IM_FORMAT_ECW_H
+#define __IM_FORMAT_ECW_H
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+/** \defgroup ecw ECW - ECW JPEG 2000
+ * \section Description
+ *
+ * \par
+ * ECW JPEG 2000 Copyright 1998 Earth Resource Mapping Ltd.
+ * Two formats are supported with this module. The ECW (Enhanced Compression Wavelet) format and the ISO JPEG 2000 format.
+ * \par
+ * Access to the ECW format uses the ECW JPEG 2000 SDK version 3.3.
+ * Available in Windows, Linux and Solaris Only. But source code is also available. \n
+ * You must link the application with "im_ecw.lib"
+ * and you must call the function \ref imFormatRegisterECW once
+ * to register the format into the IM core library. \n
+ * Depends also on the ECW JPEG 2000 SDK libraries (NCSEcw.lib).
+ * \par
+ * When using other JPEG 2000 libraries the first registered library will be used to guess the file format.
+ * Use the extension *.ecw to shortcut to this implementation of the JPEG 2000 format.
+ * \par
+ * See \ref im_format_ecw.h
+ * \par
+ * \par
+ * http://www.ermapper.com/ecw/ \n
+ * The three types of licenses available for the ECW JPEG 2000 SDK are as follows:
+\verbatim
+ - ECW JPEG 2000 SDK Free Use License Agreement - This license governs the free use of
+ the ECW JPEG 2000 SDK with Unlimited Decompression and Limited Compression (Less
+ than 500MB).
+ - ECW JPEG 2000 SDK Public Use License Agreement - This license governs the use of the
+ ECW SDK with Unlimited Decompression and Unlimited Compression for applications
+ licensed under a GNU General Public style license.
+ - ECW JPEG 2000 SDK Commercial Use License Agreement - This license governs the use
+ of the ECW JPEG 2000 SDK with Unlimited Decompression and Unlimited Compression
+ for commercial applications.
+\endverbatim
+ *
+ * \section Features
+ *
+\verbatim
+ Data Types: Byte, UShort, Float
+ Color Spaces: BINARY, GRAY, RGB, YCBCR
+ Compressions:
+ ECW - Enhanced Compression Wavelet
+ JPEG-2000 - ISO JPEG 2000
+ Only one image.
+ Can have an alpha channel
+ Internally the components are always packed.
+ Lines arranged from top down to bottom.
+ Handle() returns NCSFileView* when reading, NCSEcwCompressClient* when writing.
+
+ Attributes:
+ CompressionRatio IM_FLOAT (1) [example: Ratio=7 just like 7:1]
+ OriginX, OriginY IM_FLOAT (1)
+ Rotation IM_FLOAT (1)
+ CellIncrementX, CellIncrementY IM_FLOAT (1)
+ CellUnits (string)
+ Datum (string)
+ Projection (string)
+ ViewWidth, ViewHeight IM_INT (1) [view zoom]
+ ViewXmin, ViewYmin, ViewXmax, ViewYmax IM_INT (1) [view limits]
+ MultiBandCount IM_USHORT (1) [Number of bands in a multiband gray image.]
+ MultiBandSelect IM_USHORT (1) [Band number to read one band of a multiband gray image. Must be set before reading image info.]
+
+ Comments:
+ Only read support is implemented.
+ To read a region of the image you must set the View* attributes before reading the image data.
+ After reading a partial image the width and height returned in ReadImageInfo is the view size.
+ The view limits define the region to be readed.
+ The view size is the actual size of the image, so the result can be zoomed.
+\endverbatim
+ * \ingroup format */
+
+/** Register the ECW Format
+ * \ingroup ecw */
+void imFormatRegisterECW(void);
+
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif