CxImage History

Version 1.00, 07 - Aug - 2001

Version 1.01, 27 - Aug - 2001

• PNG Read/Save exceptions with non dword aligned scan lines.
• Mirror() don't handle the last column. <Brian R. Zielinski>

• + GrayScale(). <TRK>
  
• + Rotate().
  
• + Read Multiple Image for TIFFs & ICONs
  
• + LoadResource(). <DP>
• Changed GIF read implementation. Added animation handling. <TRK>
  

• + Demo: added hatched background and Print functionality. <TRK>
• + Undo/Redo menu. <DP>

Version 1.10, 23 - Sep - 2001

• Better exception handling in CxImagePNG & CxImageBMP. <DP>
• Gdi resource leakage and memory corruption in CxImage(HBITMAP). <TRK>
• Rotate() didn't handle transparency. <TRK>
• Fixed TIFF saving 1 & 4 bit images. <DP>

• Extended LoadResource() to TIFF format. <DP>
• - Removed info.szFileName : never used, and it's not an image related information. <TRK>
  
• Reduced fopen/fclose clutter. <TRK><DP>
• Extended constructors with "imagetype" (for future use). <TRK>
• Replaced GetPaletteIndex() with GetPaletteColor() : the function returns a color, not an index.
• Replaced GetFileType() with GetType() : to avoid confusion with the file extension.
• GrayScale() now always create an 8 bit gray scale image. <DP>
• + Implemented transparency in CxImage::Draw(). Now Draw() can also stretch the image, so Stretch() became obsolete. <TRK>
• + CxImage(FILE * stream) constructor. <TRK>
• + JPEG read CMYK format (adobe). <DP>
• + Transparency for PNG. <DP>
• + Enabled reading of RLE-compressed <TRK> and 16 & 32 bit BITFIELD <DP> bitmaps.
• + Unicode version for ReadFile/SaveFile.
• + MakeBitmap() function <Kurt Diesch>
• + JPEG can save 8 bit GrayScale images. <DP>
  

• Removed MFC-dependency (#include <afxwin.h>) <TRK>
• Changed jconfig.h with HAVE_BOOLEAN stuff <TRK>
• + new tiff_c.c module in theTIFF library, for straight C Runtime Library file functions. <TRK>
• Demo : now using Project|Dependencies.
• + Zoomin/Zoomout menu <DP>
• + Capture window menu <DP>
• + Acquire from TWAIN source <DP>

Version 1.23, 15 - Oct - 2001

• Fixed PNG reading interlaced and gray scale images. <DP>
• Fixed PNG saving 1 & 4 bit images. <DP>
• Fixed GIF saving and reading 1 & 4 bit images. <DP>
• Added safe checks in CImageIterator::SetRow() <DP> and in CxImagePNG::Decode() <yeonjun jeong>

• + Basic MNG encoder/decoder.
• + Get/SetTransIndex(): on the fly transparency for indexed images (1, 4, 8 bpp) <TRK>
• + Get/SetTransColor(): on the fly transparency for RGB images (24 bpp) <DP>
• + GIF encoder saves transparency information <TRK>
• + PNG encoder saves transparency information <DP>
• + SwapIndex() function for palette operations with transparency <DP>
• + Resample() function <Steve McMahon>
• + Get/SetEscape() to quit the slow loops.
• + Get/SetProgress() to monitor the slow loops.
• + SetStdPalette() to create a standard palette for 256 and 16 colors images.
• + DecreaseBpp()/IncreaseBpp().
  

• Transparency handling menu <DP>
• Fixed cast problem in Jcapimin.c, comparing JPEG_LIB_VERSION <F. Livraghi>
• Resample, DecreaseBpp, IncreaseBpp menu <DP>
• Stopwatch and ProgressBar in the status bar <DP>
• Image computations are in a separate thread <DP>
• Added CQuantizer class to implement the color reduction with the octree algorithm. <Jeff Prosise>

Version 1.25, 28 - Oct - 2001

• Added support for 32 bit PNGs and 16 bit TIFs

Version 2.00, 29 - Dec - 2001

• fixed deadlock in GIF decoder
• PNG decoder reads 16 bit grayscale images.
• TIF decoder reads 4 bit grayscale images.
• fixed bug in CreateFromHBITMAP() <Wil Stark>
• Fixed PNG encoder bug, buffer allocation error with BW images.
  

• MNG decoder handles the background information.
  
• TIF encoder now uses COMPRESSION_JPEG for 24 bit images.
  
• LoadResource(): added new parameter to work with dlls. <Ayatu>
• LoadResource() now works with network applications. <Ayatu>
• Changed CxImage() constructors, Copy() and Transfer() interface and implementation <Kirk>
• Added CreateFromHANDLE() and CreateFromHBITMAP() in place of the old constructors.
• Automatic file format recognition in ReadFile() <Patrick Hoffmann>
• Faster Draw() implementation for transparent images. (Thanks to Paul Reynolds and Ron Gery)
• New Get/SetJpegQuality() for JPEG and TIF encoders.
• New Get/SetXDPI(), Get/SetYDPI() for BMP and TIF formats.
• New Dither() function, with Floyd-Steinberg or Ordered-Dithering BW conversion (Thanks to Kenny Hoff and Steve McMahon)
• New functions : Crop(), SplitRGB(), SplitYUV(), SplitHSL().
• New functions : Colorize(), Light(), Threshold(), Mean(), Filter(), Dilate(), Erode().
  

• Removed bad pixels from "Capture Window" <Qiang>
  
• New menus: Blur, Soften, Edge, Sharpen, Emboss, Dilate, Erode, Threshold, Dither, ...
  

Version 3.00, 20 - Jan - 2002

• fixed HSLtoRGB() conversion <F. Livraghi >
• CxImagePNG: fixed deallocation bug in Encode() <Ranger>
• CxImagePNG: now reads 2 bpp images.
• CxImageBMP: fixed DPI rounding error <DIH>
• CreateFromHANDLE now handles the DPI information <Jeff Hu>
  

• New pixel ALPHA channel, overall opacity. (14 dedicated functions)
• New Alpha Palette. (5 dedicated functions)
• New Region Selection (rectangle, ellipse, polygon - 11 dedicated functions).
• New "copypixels", "copyselection", "copyalpha" options for constructor/Copy()
• New "errordiffusion" option for DecreasBPP().
• New Draw() implementation with support for alpha channel, alpha palette, opacity, transparency.
• New PCX decoder CxImagePCX
• New TGA decoder/encoder CxImageTGA (with alpha channel)
• High resolution shrink for Resample() <Henrik Stellmann>
• CxImagePNG now reads/saves the transparency information (palette and alpha channel)
  

• Updated PNG library: Libpng version 1.2.1
• Free-hand selection with the left mouse button.
  

Version 3.02, 24 - Jan - 2002

• CxImagePNG: fixed allocation bug in Decode()
• CxImagePNG: cast error saving 8 bpp images.

Version 3.09, 21 - Feb - 2002

• Rotation() and Resample() handle the alpha channel. <MTA>
• CxImagePNG: Encode() merges the transparent color with the alpha channel.
• Fixed exceptions and leaks in Draw() <RG>
• CxImageBMP now reads 32 bpp BITFIELD images.
• Decode() correctly loads multipage ICO and TIF files. <REC>

Version 3.21, 11 - Mar - 2002

• Fixed memory leakage in CxImagePNG::Encode() <Rob Cass>.
• Fixed CxImageICO::Decode() problem with 16 colors icons <Rogier>.

• CxImageICO reads/saves icons with transparent pixels.
• CxImageTIF::Decode() now takes care of the orientation tag.
• New RotateLeft(), RotateRight(), Rotate180() functions <MKVY>.
• Faster Draw() implementation for images with transparency <DJT>.

• Updated BCMenu: version 3.01.
• Replaced CreateThread() with _beginthread() to avoid small memory leaks.

Version 4.00, 12 - May - 2002

• Fixed JPEG error handler <CSC>
• Fixed _tiffSizeProc in tif_c.c to load images with missing stripcount.
• Transformations preserve info.dwType perameter <CSC>
• Createfromhandle() bugfix for 32bitfield images <JA>
• GetPixelColor bugfix when the coordinates are in the outside of the image <Mpwolski>

• New CxFile class to read/write memory files and disk files.
• Added support for Read/Write 32bpp TIFFs with apha channel.
• New methods : Mix() <Mpwolski>, Destroy(), IsIndexed()
• Read/Write support for Multipage TIFF <Abe>
• Read/Write support for Animated GIF (gif89a), with comment, loops and disposal method
• Added xOffset and yOffset in CxImage::info
• Changed names : ReadFile -> Load ; SaveFile -> Save
• LoadResource uses CxFile

• Updated BCMenu: version 3.03.
• LibTiff : enabled alpha (tif_getimage.c;Ln:212), enabled ZIP_SUPPORT
• Pane view function with "shift+Lbutton"
• Updated LibTiff to 3.5.7
• New URL download dialog; WebGrab class by Chris Maunder

Version 4.01, 15 - May - 2002

• Added some constructors and Encode()/Decode() methods to work with memory buffers directly.

• Changed URL download dialog.

Version 4.10, 01 - Jun - 2002

• Fixed PNG error handler.
• Fixed TGA decoder for RLE encoded pictures with alpha channel <Ole Lange> and 15 bit pictures.
• Fixed BMP decoder for 32 bit images.

• Added Read/Write support for 24 and 32 bit ICONs.
• new bAppend parameter in CxImageTIF::Encode() for better multi page TIF creation. <Abe>

• Updated zlib to 1.1.4.<Ayatu>
• Added OJPEG_SUPPORT (not for Wang).

Version 5.00, 23 - Aug - 2002

• CxImageTIF::Decode : fixed default orientation. <vho>
• CxImageTIF::Encode saves 1bpp always with PHOTOMETRIC_MINISWHITE <abe>
• CxImageJPG::Encode : fixed jpg encoder for memory files.
• CxImageICO::Encode : fixed problem with 4bpp images with transparency.
• CxImagePNG::Encode : fixed problem when info.bColorType was wrong <Kwyshell>
• removed info.bColorType and changed GetColorType() implementation.
• CxImageBMP::Decode handles TopDown Bitmaps <Flanders>, small bugfix <CSC>
• CxImageTIF::Encode : TIFFSetField(m_tif, TIFFTAG_ROWSPERSTRIP, TIFFDefaultStripSize(m_tif, -1)); gives better compression <REC>
• Load( ) returns the correct info.nNumFrame when info.nFrame<0.
• removed bug in tif_xfile.c when encoding memory files.
• CxImageBMP::Decode loads correctly OS2 bmps.
• bugfix in Resample( ) when (newx==width && newy==height)
• better operator= definition <Anatoly Ivasyuk>

• new formats: WBMP, WMF - EMF <vho>, JBIG, JPEG2000.
• new full codec for PCX, with support for RGBA images.
• new methods: GetVersion, IsTransparent <vho>, ShiftRGB, Median, Gamma, Noise, Combine, FFT, Repair, AlphaSplit
• added r/w support for 8bpp TIFFs with alpha layer.
• added support for TrueColor, RLE and uncompressed GIFs.
• added CXIMAGEJPG_SUPPORT_EXIF for JPGs.
• new switches: CXIMAGE_SUPPORT_DECODE, CXIMAGE_SUPPORT_ENCODE,
  CXIMAGE_SUPPORT_WINDOWS, CXIMAGE_SUPPORT_WINCE <T.Peck>
• SetEscape can abort the codecs loops <vho>.
• added ximadefs.h to adjust automatically the switches.
• the codecs for ICO, PNG, TGA and TIF work also with CXIMAGE_SUPPORT_ALPHA = 0 <vho>
• added DPI information support for jpeg <Koray Geçici>
• new CxFile CxMemFile CxIOFile implementations <CSC>
• MakeBitmap( ) creates a real DIB if HDC == 0 <CSC>
• Draw( ) added pClipRect parameter.
• CxImageTIF::Decode : re-enabled error handler for debugging;

• Zlib : replaced zlib.rc and zlib.def <ayatu>.
• Demo: new tools, histogram, palette, replaced xshadebutton with xtargetbutton.
• Updated LIBPNG to 1.2.4
• LibTIFF::tiff_read.c::ln188: commented to decode strange images, it's not dangerous.
• LibTIFF small changes to compile under linux (tiff_xfile.cpp, tiff_jpeg.c, tiff_ojpeg.c, tiffiop.h)
• LibJPEG : small changes to compile under linux (jmorecfg.h)
• Added project for DLL build and console applications.

PEOPLE:

Updated 23. aug 2002 00:00 by Davide Pizzolato <ing(.)davide(.)pizzolato(at)libero(.)it>