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<!doctype HTML PUBLIC "-//IETF//DTD HTML//EN">
<html>
<head>
<title>History</title>
<meta http-equiv="Content-Language" content="en-us">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<body>
<h1>History of Changes</h1>
<h3 dir="ltr">Version 3.4.2 (24/Jun/2009)</h3>
<ul>
<li><span style="color: #FF0000">Fixed:</span> AVI format when reading 32
and 16 bpp frames.</li>
<li><span style="color: #FF0000">Fixed:</span> xmin and ymin check in
im.ProcessCrop and in im.ProcessInsert in Lua.</li>
</ul>
<h3 dir="ltr">Version 3.4.1 (15/Dec/2008)</h3>
<ul>
<li><span style="color: #008000">Changed:</span> function <strong>
imColorHSI_Smax</strong> removed from public, now it is used only
internally. HSI space now uses S already normalized between 0-Smax.</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>imColorHSI2RGB</strong>
conversion.</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>imConvertDataType</strong>
when converting a floating point to integer, there were rounding problems.</li>
<li><span style="color: #FF0000">Fixed:</span> loading and saving two or more files of the same format at the same time.</li>
</ul>
<h3 dir="ltr">Version 3.4 (14/Oct/2008)</h3>
<ul>
<li><span style="color: #0000FF">New:</span> imlua_avi, imlua_wmv and imlua_jp2 libraries so the
respective formats can be dynamically loaded
using require.</li>
<li><span style="color: #0000FF"><span style="color: #008000">Changed</span>:</span>
<strong>
<span style="color: #FF0000">IMPORTANT</span></strong> -
the "imlua_cd" library moved from IM to CD under the name "cdluaim".</li>
<li><span style="color: #0000FF"><span style="color: #008000">Changed</span>:</span>
<strong>
<span style="color: #FF0000">IMPORTANT</span></strong> - the support services
(Downloads, Mailing List and CVS) moved from LuaForge to SourceForge.</li>
<li><span style="color: #008000">Changed:</span> All dll8 and dll9 DLLs now
have a Manifest file that specifies the correct MSVCR*.DLL.</li>
<li><span style="color: #008000">Changed:</span>
Makefiles for UNIX now uses a compact version of Tecmake that does not need
any installation, just type "make".</li>
<li><span style="color: #008000">Changed</span>: premake files are used now
only internally and were removed from the distribution.</li>
<li><span style="color: #0000FF"><span style="color: #008000">Changed</span>:</span>
Copyright notice modified to reflect the registration at INPI (National
Institute of Intellectual Property in Brazil). License continues under the
same terms.</li>
<li><span style="color: #FF0000">Fixed:</span> reviewed and fixed the parameter
checking of all IMLua processing functions. Also reviewed all IMLua
parameter checking. Thanks to Lucas Lorensi.</li>
<li><span style="color: #FF0000">Fixed:</span> loading of TIFF format with
old JPEG compression.</li>
<li><span style="color: #FF0000">Fixed:</span> loading and saving of PNM
format when data in textual format and gray values are greatter than 255.</li>
<li><span style="color: #FF0000">Fixed:</span> Bicubic and Zero order
interpolation for all geometric operations for pixels near the image border
when increasing image size.</li>
<li><span style="color: #FF0000">Fixed:</span> Lua samples.</li>
<li><span style="color: #FF0000">Fixed:</span> ICON format in 64 bits Linux.</li>
</ul>
<h3 dir="ltr">Version 3.3 (26/Nov/2007)</h3>
<ul>
<li><span style="color: #0000FF">New:</span> read support for ECW using the
ERMapper ECW JPEG 2000 SDK.</li>
<li><span style="color: #008000">Changed:</span> libTIFF updated to version
3.8.2.</li>
<li><span style="color: #008000">Changed:</span> libPNG updated to version
1.2.22.</li>
<li><span style="color: #008000">Changed:</span> libJasper updated to
libGeoJasper 1.4.0 (using Jasper version 1.900.1). Better support for
counter progress, Geo tags and several speed improvements. New GeoTIFFBox
and XMLPacket attributes.</li>
<li><span style="color: #008000">Changed:</span> renamed macro <b>imPutImage</b>
to <b>imcdCanvasPutImage</b>, and added canvas as the first parameter. </li>
<li><span style="color: #008000">Changed:</span> renamed
the <b>imImage</b> Lua
methods to <i><strong>image</strong></i><b>:cdCanvasPutImageRect</b>, <i>
<strong>image</strong></i><b>:wdCanvasPutImageRect</b>
and <i><strong>image</strong></i><b>:cdCanvasGetImage</b>, and added canvas as the first parameter. Now <i>imlua_cd</i>
depends on <i>cdlua</i> from CD version 5.0.</li>
<li><span style="color: #008000">Changed:</span> metatable names in Lua are
now the same as the C struct names.</li>
<li><span style="color: #008000">Changed:</span> new read EXIF tags support
in TIFF format (no write support yet). Renamed attributes "GeoTransMatrix"
and "IntergraphMatrix", to "GeoTransformationMatrix" and "Intergraph
TransformationMatrix" for libGeoTIFF compatibility. Better support for
known TIFF tags. New support for reading one band of a multiband gray image
in TIFF format. New support for DNG files.</li>
<li><span style="color: #FF0000">Fixed:</span><strong> imConvertDataType</strong>
gamma function when converting real to/from integer.</li>
<li><span style="color: #FF0000">Fixed:</span><strong> </strong>small error at
the image border when resampling, rotating or other geometric operations.</li>
<li><span style="color: #FF0000">Fixed:</span><strong> </strong>
<b>imProcessCanny</b> invalid division by zero when input image is all zero.</li>
<li><span style="color: #FF0000">Fixed:</span><strong> </strong>
<b>imFileReadImageInfo</b> when loading MAP images with a scrambled gray
palette. They were incorrectly converted to GREY.</li>
<li><span style="color: #FF0000">Fixed:</span><strong> </strong>
support for IM_ALPHA and 32 bpp in ICO format.</li>
<li><span style="color: #FF0000">Fixed:</span><strong> </strong>
number of lines returned in <b>imProcessHoughLinesDraw</b>.</li>
</ul>
<h3 dir="ltr">Version 3.2 (24/Nov/2006)</h3>
<ul>
<li><span style="color: #0000FF">New:</span> <strong>imProcessRotateRef</strong> to rotate relative to a reference point.</li>
<li><span style="color: #0000FF">New:</span> geometric distortion <strong>imProcessSwirl</strong>.</li>
<li><span style="color: #0000FF">New:</span> <strong>imProcessInterlaceSplit</strong>.</li>
<li><span style="color: #0000FF">New:</span> function <strong>imGaussianKernelSize2StdDev</strong>.</li>
<li><span style="color: #0000FF">New:</span> convolutions <strong>imProcessBarlettConvolve</strong>,
<strong>imProcessPrewittConvolve</strong>, <strong>imProcessSplineEdgeConvolve</strong>,
<strong>imProcessConvolveDual</strong> and <strong>imProcessConvolveSep</strong>. </li>
<li><span style="color: #0000FF">New:</span> "im_kernel.h" module with simple functions to create know pre-defined kernels like sobel, laplacian, gaussian,
etc.</li>
<li><span style="color: #0000FF">New:</span> <strong>imVideoCaptureSetInOut</strong> to control input and output in capture devices.</li>
<li><span style="color: #0000FF">New:</span> function <strong>imBinMemoryRelease</strong> to release internal memory allocated
by the BinMemory file when saving.</li>
<li><span style="color: #0000FF">New:</span> functions for capture device information:
<strong>imVideoCaptureDeviceExDesc</strong>, <strong>imVideoCaptureDevicePath</strong> and
<strong>imVideoCaptureDeviceVendorInfo</strong>.</li>
<li><span style="color: #0000FF">New:</span> function <strong>imFileOpenAs</strong>
to open a file of a specific format.</li>
<li><span style="color: #0000FF">New:</span> functions <strong>
imFormatRegisterInternal</strong> and <strong>imFormatRemoveAll</strong> to
control format registration.</li>
<li><span style="color: #008000">Changed:</span> <strong>imProcessGaussianConvolve</strong> to used separable convolution and now is stddev is negative will use its
magnitude as the kernel size. Removed Rep functions <strong>imProcessGaussianConvolveRep</strong>,
<strong>imProcessDiffOfGaussianConvolveRep</strong> and
<strong>imGaussianStdDev2Repetitions</strong>.</li>
<li><span style="color: #008000">Changed:</span> <strong>imProcessBlend</strong>
to use an image instead of a constant. Old function renamed to <strong>
imProcessBlendConst</strong>.</li>
<li><span style="color: #008000">Changed:</span> <strong>imFileHandle</strong> prototype. Now the function has an index parameter to specify which handle it should return.
index=0 is always an imBinFile* handle. Use index=1 or greater to return other internal handles that are format
dependent.</li>
<li><span style="color: #008000">Changed:</span> the Removed the include "im.h"
to not include "im_lib.h". "im_lib.h" must be included when necessary.</li>
<li><span style="color: #008000">Changed:</span> <strong>imAnalyzeMeasureArea</strong> and
<strong>imAnalyzeMeasurePerimeter</strong> prototypes to include the number of regions as a
parameter. Fixed: these functions to internally initialize the results array to zero (this was necessary and not
documented).</li>
<li><span style="color: #008000">Changed:</span> <strong>imProcessFlip</strong>
and <strong>imProcessMirror</strong> so they can be done in-place.</li>
<li><span style="color: #FF0000">Fixed:</span> missing implementation of
<strong>imVideoCaptureOneFrame</strong> in Lua 5.</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>imAnalyzeFindRegions</strong> when pixel is at the width-1 column.</li>
<li><span style="color: #FF0000">Fixed:</span> file format identification when
<strong>TIFF</strong> identification failed was not closing the file.</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>imAnalyzeMeasurePerimeter</strong> when perimeter line is at the first or last lines. Thanks to Takeshi Mitsunaga.</li>
<li><span style="color: #FF0000">Fixed:</span> invalid return value in <strong>imVideoCaptureConnect</strong> in Lua 5.</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>imProcessRotate</strong> for IM_MAP images.</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>Lua</strong> binding of
<strong>imFileImageSave</strong>, wrong parameters order. New: image:Save(filename, format) alias for imImage
objects.</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>BMP</strong> format implementation when reading and writing RGBA 32 bits images.</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>imFileLoadImageFrame</strong> and
<strong>imFileLoadBitmapFrame</strong> index parameter in Lua.</li>
<li><span style="color: #FF0000">Fixed:</span> alpha channel allocation in imImage.</li>
</ul>
<h3>Version 3.1 (12/Dez/2005)</h3>
<ul>
<li><span style="color: #0000FF">New:</span> Download, Discussion List, Submission of Bugs, Support Requests and Feature Requests, are now available thanks
to the LuaForge site.</li>
<li><span style="color: #0000FF">New:</span> Binding for Lua 5</li>
<li><span style="color: #0000FF">New:</span> support for alpha in imImage.</li>
<li><span style="color: #0000FF">New:</span> organization of the documentation.</li>
<li><span style="color: #0000FF">New:</span> in ICON format the TransparencyIndex is used to for IM_MAP images without an alpha
channel.</li>
<li><span style="color: #0000FF">New:</span> video capture functions: <strong>imVideoCaptureFormatCount</strong>,
<strong>imVideoCaptureGetFormat</strong>
and <strong>imVideoCaptureSetFormat</strong>, to access the available capture video formats.</li>
<li><span style="color: #0000FF">New:</span> functions <strong>imFileLoadImageFrame</strong> and
<strong>imFileLoadBitmapFrame</strong> to reuse the
image data when loading.</li>
<li><span style="color: #0000FF">New:</span> function <strong>imFileImageSave</strong>.</li>
<li><span style="color: #0000FF">New:</span> function <strong>imImageCreateBased</strong>.</li>
<li><span style="color: #0000FF">New:</span> <strong>imProcessInsert</strong>.</li>
<li><span style="color: #0000FF">New:</span> compression functions <strong>imCompressDataLZF</strong> and
<strong>imCompressDataUnLZF</strong>, using
libLZF.</li>
<li><span style="color: #0000FF">New:</span> module for imBinFile, <strong>IM_FILEHANDLE</strong> that allows to access an already opened file using the
system file handle as file name. Thanks to Frederico Abraham.</li>
<li><span style="color: #008000">Changed:</span> in JPEG file format YcbCr are now automatically converted to RGB when loaded. RGB images were already
automatically converted to YCbCr when saved. Now this behavior can be controlled by the AutoYCbCr
attribute.</li>
<li><span style="color: #008000">Changed:</span> the <strong>imAnalyzeFindRegions</strong> to include an additional parameter that control if regions
touching the border are computed or not. The function <strong>imProcessPrune</strong> now will only eliminate the
regions in the selected size range.</li>
<li><span style="color: #008000">Changed:</span> third party libraries, updated to newest versions: libExif, libTIFF, libPNG and zlib. Added OLD JPEG
support in libTIFF.</li>
<li>
<span style="color: #008000">Changed:</span> optimization flags to ON when building the library in all platforms.</li>
<li><span style="color: #008000">Changed:</span> <strong>imProcessPerimeterLine</strong>,
<strong>imAnalyzeMeasurePerimeter</strong>,
<strong>imAnalyzeMeasurePerimArea</strong>, <strong>imAnalyzeMeasureCentroid</strong> and
<strong>imAnalyzeMeasurePrincipalAxis</strong> to consider pixels that touch the borders.</li>
<li><span style="color: #008000">Changed:</span> macro name <strong>cdPutBitmap</strong> to
<strong>imPutBitmap</strong>.</li>
<li><span style="color: #008000">Changed:</span> function names imImageLoad and
<strong>imImageLoadBitmap</strong>, to
<strong>imFileImageLoad</strong> and <strong>imFileImageLoadBitmap</strong>.</li>
<li><span style="color: #FF0000">Fixed:</span> overflow in <strong>imCalcImageStatistics</strong> fo IM_INT and IM_USHORT images.</li>
<li><span style="color: #FF0000">Fixed:</span> error management in system file I/O in
<strong>UNIX</strong>.</li>
<li><span style="color: #FF0000">Fixed:</span> some small defines for 64-bits compatibility in libExif, libPNG and libJPEG.</li>
<li><span style="color: #FF0000">Fixed:</span> incorrect interpretation of 16 bit data from
<strong>PNG</strong> files.</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>imFileReadImageInfo</strong> can be called many times with the same index that will return the
correct result without accessing the file again.</li>
<li><span style="color: #FF0000">Fixed:</span> small bug in sample <strong>iupglcap</strong>.</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>TIFF</strong> format read for images with multiple bands in ExtraSamples.</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>ICON</strong> format can_sequence was 0.</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>imProcessMergeHSI</strong> and
<strong>imProcessSplitHSI</strong> documentation, and
implementation for <strong>IM_BYTE</strong> images.</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>imProcessRangeContrastThreshold</strong>,
<strong>imProcessLocalMaxThreshold</strong> and
<strong>imProcessRankClosestConvolve</strong> when processing near the border.</li>
<li><span style="color: #FF0000">Fixed:</span> invalid file permissions in UNIX when saving a new file.</li>
<li><span style="color: #FF0000">Fixed:</span> name for <strong>imProcessLocalMaxThresEstimate</strong>.</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>imProcessReduceBy4</strong> for images with odd width and/or height.</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>imAttribTableSet</strong> when replacing an attribute (thanks to Takeshi Mitsunaga).</li>
<li><span style="color: #FF0000">Fixed:</span> memory leaks in <strong>imConvertToBitmap</strong> and
<strong>imConvertDataType</strong> (thanks to
Takeshi Mitsunaga).</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>imProcessZeroCrossing</strong> for the last pixel column (thanks to Takeshi Mitsunaga). Also
fixed for some crossings that were lost.</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>imProcessGrayMorphConvolve</strong> for
<strong>IM_FLOAT</strong> images with
<strong>IM_FLOAT</strong> kernel (thanks to Takeshi Mitsunaga).</li>
</ul>
<h3>Version 3.0.3 (14/Oct/2004)</h3>
<ul>
<li><span style="color: #0000FF">New:</span> Image Transform <strong>imProcessDistanceTransform</strong>.</li>
<li><span style="color: #0000FF">New:</span> group of functions Image Analysis:
<strong>imAnalyzeFindRegions</strong>, <strong>imAnalyzeMeasureArea</strong>,
<strong>imAnalyzeMeasurePerimArea</strong>, <strong>imAnalyzeMeasureCentroid</strong>,
<strong>imAnalyzeMeasurePrincipalAxis</strong>, <strong>imAnalyzeMeasureHoles</strong>, imProcessPerimeterLine,
<strong>imAnalyzeMeasurePerimeter</strong>, <strong>imProcessPrune</strong>,
<strong>imProcessFillHoles</strong>.</li>
<li><span style="color: #0000FF">New:</span> <strong>imConvertMapToRGB</strong> to help loading data as RGB.</li>
<li><span style="color: #0000FF">New:</span> sample iupglcap.</li>
<li><span style="color: #0000FF">New:</span> <strong>imProcessRenderChessboard</strong> and
<strong>imProcessRenderGrid</strong>.</li>
<li><span style="color: #008000">Changed:</span> <strong>imProcessThreshold</strong>,
<strong>imProcessRangeContrastThreshold</strong> and <strong>imProcessLocalMaxThreshold</strong> now also supports
<strong>IM_USHORT</strong> and <strong>IM_INT</strong>
data types. </li>
<li><span style="color: #008000">Changed:</span> the default color conversion to binary
so it can be done for all color spaces.</li>
<li><span style="color: #008000">Changed:</span> im_process.h to split into 4 files: im_process_pont.h,
im_process_loc.h, im_process_glo.h, im_process_ana.h. But it still
exists and includes the new files for compatibility.</li>
<li><span style="color: #008000">Changed:</span> the border extensions in several types of convolution. Rank convolution do not extend the borders. Binary
morphology use zero extension. Gray morphology do not extend the borders.</li>
<li><span style="color: #FF0000">Fixed:</span> file read with bitmap conversion when original data changes only data type. </li>
<li><span style="color: #FF0000">Fixed:</span> rank convolution operations that did not accept even kernel sizes.</li>
<li><span style="color: #FF0000">Fixed:</span> <strong>imProcessHoughLinesDraw</strong> that was ignoring some lines.</li>
</ul>
<h3>Version 3.0.2 (25/Aug/2004)</h3>
<p>- <span style="color: #0000FF">New:</span> utility functions <b><b>imPaletteHighContrast</b></b>, <b>
<b>imImageLoadImage</b></b> and <b>
<b>imImageLoadBitmap</b></b>. <br>
- <span style="color: #0000FF">New:</span> operation <b><b>imProcessNormalizeComponents</b></b>.<br>
- <span style="color: #008000">Changed:</span> name <b><b>imProcessGaussianConvolve</b></b> to <b>
<b>imProcessGaussianConvolveRep</b></b>. New:
operation <b><b>imProcessGaussianConvolve</b></b> that uses a float kernel.
New: utility functions <b>
<b>imGaussianStdDev2Repetitions</b></b> and <b><b>imGaussianStdDev2KernelSize</b></b>.<br>
- <span style="color: #008000">Changed:</span> name <b><b>imProcessDiffOfGaussianConvolve</b></b> to <b>
<b>imProcessDiffOfGaussianConvolveRep</b></b>.
New: operation <b><b>imProcessDiffOfGaussianConvolve</b></b> that uses a float kernel. <br>
- <span style="color: #008000">Changed:</span> <b>IM_GAMUT_BRIGHTCONT</b>
parameters to the interval [-100,100]. Fixed: <b>
<b>IM_GAMUT_EXPAND</b></b> and <b><b>IM_GAMUT_BRIGHTCONT</b></b> normalization.<br>
- <span style="color: #008000">Changed:</span> logical operations, flag <b> <b>IM_BIT_NOT </b>
</b>replaced by operation <b><b>imProcessBitwiseNot</b></b>.<br>
- <span style="color: #008000">Changed:</span> <b>imImageSetAttribute</b> count can be -1 for zero terminated data.<br>
- <span style="color: #FF0000">Fixed:</span> operations <b><b>imProcessBitwiseNot</b></b> and <b>
<b>imProcessNegative</b></b> for <b><b>IM_BINARY</b></b> images.<br>
- <span style="color: #FF0000">Fixed:</span> the <b><b>color_mode_flags</b></b> parameter interpretation by <b>
<b>imFileReadImageData</b></b>.
<br>
- <span style="color: #FF0000">Fixed:</span> <b>imProcessEqualizeHistogram</b> and <b>
<b>imProcessExpandHistogram</b></b> for
color images. <br>
- <span style="color: #FF0000">Fixed:</span> <b>imProcessMultipleStdDev</b>.<br>
- <span style="color: #FF0000">Fixed:</span> <b>imProcessDifusionErrThreshold</b> for <b>
<b>IM_GRAY</b></b> images.<br>
- <span style="color: #FF0000">Fixed:</span> "<b><b>KRN</b></b>" format, internal format is topdown.<br>
- <span style="color: #FF0000">Fixed:</span> initialization of TGA image_count.</p>
<h3>Version 3.0.1 (22/Apr/2004)</h3>
<p>- Improved compatibility with the old version, it was missing the load of Map images with <b>
<b>imLoadRGB</b></b>.<br>
- The FFTW code was from version 2.1.3, not from 2.1.5 as suposed, it was updated. The FFT functions were condensed in
only one file with an "#ifdef" for FFTW version 2 and 3. The FFT functions also were renamed to remove the "W" that
belongs only to the FFTW library.<br>
- The <b><b>SetAttribute</b></b> functions now accept NULL in data to remove the attribute.<br>
- New: <b><b>imProcessCrossCorrelation</b></b> and <b><b>imProcessAutoCorrelation</b></b> functions.<br>
- The <b><b>imCalcGrayHistogram</b></b> function now can calculate the histogram of <b>
<b>IM_MAP</b></b>
and <b><b>IM_BINARY</b></b> images.</p>
<h3>Version 3.0 (April 2004)</h3>
<p>A major rewrite of the library. Everything changed, check the manual, but backward compatibility is kept for old
applications. A new API more flexible, new formats, support for attributes and video, image capture and image
processing. New: color spaces and data types. The library now got a professional look for scientific applications.</p>
<h3>Version 2.6 (May 2002)</h3>
<p>Correction of bug in resolution reading and writing for format JPEG.</p>
<h3>Version 2.5 (August 2001)</h3>
<p>Correction of bug in the default GIF compression. Two new callbacks: transparency color index for GIF files and
image description for TIFF files.</p>
<h3>Version 2.4 (February 2000)</h3>
<p>Change in the treatment of LZW compression in formats TIFF and GIF. Now compression is no longer the default.</p>
<h3>Version 2.3 (June 1998)</h3>
<p>Close function of the access driver for files in memory corrected. JPEG library updated to 6b. Correction of a
problem with the reading of some JPEG files.</p>
<h3>Version 2.2 (November 1997)</h3>
<p>The definition of the counter callback was changed to inform, in a parameter, the type of access being performed,
either reading or writing. Type <strong>imCallback</strong> defined to make type casting easier when using function
<strong>imRegisterCallback</strong>. Correction of a problem with the makefile in UNIX, which was generating link
errors in some platforms.</p>
<h3>Version 2.1 (October 1997)</h3>
<p>Correction of a problem with internal memory liberation when reading Map images in TIFF files. Conversion <b>RGB to
Map</b> is now made using the algorithm implemented by LibJPEG. The algorithm of <strong>imResize</strong> was
improved for cases in which the size is being reduced instead of increased. Correction of a problem with functions
<strong>imImageInfo</strong> and <strong>imFileFormat</strong>: when the provided file was not in a format recognized
by IM, there was an error in format TGA which caused these functions to access an invalid memory area.</p>
<h3>Version 2.0 (September 1997)</h3>
<p>The library was virtually rewritten to implement a new structure which allowed greater flexibility, simplifying the
addition of new formats. Formats <strong>TGA</strong>, <strong>PCL</strong>, <strong>JPEG</strong> and <strong>LED</strong>
were added to the list of supported formats, and new functions were added: <strong>imMap2RGB</strong>, <strong>
imRGB2Gray</strong>, <strong>imMap2Gray</strong>, <strong>imResize</strong>, <strong>imStretch</strong>.</p>
<h3>Version 1.1 (June 1996)</h3>
<p>Small corrections to increase portability. Changes in return codes. Identifiers were created to return codes and
predefined parameters. Online manual concluded.</p>
<h3>Version 1.0 (October 1995)</h3>
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