Image Filters open source library

Filters is a library implementing image filters
and image processing functions

history

V3.3-2009_12:

V3.1-2007_10:

We are pleased to announce this important release of 'Filters', the version 3.1 (codename 2007_10).

The main advance of this new version is the official API for Microsoft .NET plateform !
You will find 2 tutorials on how to do this : one in C#, and another one in Visual Basic

We provide again 'FiltersTest', our friendly user interface to explore our open source library 'Filters'.
->'Filters' is a image processing library for industrial and scientific use.

don't re-invent the wheel !, you have better to use Filters library, and work on the core of your computer vision project, no ?
Classical image processing provided by Filters are:
sobel,convolution,morphology,vectorization,segmentation,blob,blur,histogram,susan,threshold,texture,contrast,standard deviation,canny,distance map,polygonalisation by douglas-peuker or sklansky-gonzales,contour,edge,adust contrast/brightness,extract part image with a powerfull cutter(grid based or blob based),rotation,median,logPolar,correlation,repositioning,...
There is also functions for image manipulation (draw line, rect, disk, extract pixel info, R,G,B channel, ...)

Filters offical API are for language C/C++, Delphi, Python, .NET C#, .NET Visual Basic

This version of 'Filters' core library include :
-----------------------------------------------------
V3_1-2007_10
** API change
- IMPORTANT : new official .NET API (tested with C# and VisualBasic.NET)
- filtersDllC : add function 'filters_getOutputArrayPointersLength'
** new filters
- add filtersPlugin_SnapShot
** improvements
- filterCopy : add convertion in Hue domain
- filtersTest : add Hue/Saturation/Luminosity pixel info in viewer tools
** other
- add tutorial 'TutorialC4' for using Filters in C/C++ with the free IDE Borland Turbo C++
- add function 'testWebCam' in 'tutorialC3' to test 'filtersPlugin_WebCam' in C++
- add tutorial 'TutorialCSharp1' and 'TutorialCSharp2' for using Filters in .NET C#
- add tutorial 'TutorialVisualBasic1' for using Filters in .NET Visual Basic
** bugs correction
- FiltersPlugin_WebCam : check if cam device is has formats

Please, post your request or question on the forum at http://sourceforge.net/forum/?group_id=119964

More information is available at http://filters.sourceforge.net/

To download : http://sourceforge.net/projects/filters/

V3.0-2007_01:

** API change
- IMPORTANT CHANGE : new functions 'initialize' and 'unInitialize'. YOU MUST CALL IT.
- new function 'setProperty'. Currently you can set the property 'PLUGINS_DIRECTORY'
- new function 'getOutputArrayPointersLength'; Usefull when you need to get the length of a array returned by the function 'getOutputArrayPointers'
- in Python API 'FiltersDllPy' : remove function 'EraseOrCreateImageLike'
** new filters
- add filterCompare
- add filterRGB
- add filterHoughTransform.pas (use OpenCV "cvHoughLines2" function)
- add filtersPlugin_TestDelphi
- add filtersPlugin_TestC
- add filtersPlugin_Video
- add filtersPlugin_WebCam
- add filtersPlugin_Viewer
** improvements
- filtersDll : add function 'image_drawCircle'
- filtersDll : add functions 'image_getRectIntersection', 'image_getRectPerimeter'
- filtersDll : add function 'image_isSameSize'
- filtersDll : add function 'image_getValidROI'
- filterCoOccurrenceMatrix : add features calculation (Dissimilarity, Mean, Variance, Correlation)
- filterImageCreator : add command 'createRect', 'createRectFilled', 'createDisk', 'createCircle'
- filterBlobRepositioning2 : add parameter 'rotation_InterpolationMode'
- filterBlobRepositioning2 : add parameter 'tryRotate180'
- filterBlobExplorer : add parameter 'intensityInvert'
- filtersTest : load image files provided on program argument
- filtersTest : add selection of format in live camera capture
- filtersTest : add video loading (use filtersPlugin_Video)
- filtersTest : add WebCam loading (use filtersPlugin_WebCam)
- filtersCanny, FiltersContour : upgrate from OpenCV version 0.97 to 1.00
- filterThresholdBinary : add mask management, and ROI
- filterImageLoader, filterImageSaver : upgrate from FreeImage 3.7.0 to 3.9.2
** bugs correction
- filterCoOccurrenceMatrix : correction of calcul of feature 'inverse difference moment'
- filterNonMaximaSupression : correction
- image.createImageTest : correction
** other
- add the tutorial 'TutorialP1' for using Filters in language Python
- add the tutorial 'TutorialP2' for using Filters in language Python and a sample on how to create a Filters image from a PIL image
- add the tutorial 'TutorialP3' for using 'filtersPlugin_WebCam' and 'filtersPlugin_Video' in Python
- add the tutorial 'TutorialC1' for using Filters in C/C++ with Microsoft Visual Studio C++ Express
- add the tutorial 'TutorialC2' for using Filters in C/C++ with Eclipse CDT and MinGW compiler
- add the tutorial 'FiltersPlugin_Noise\Src' in Delphi : a tutorial on how to create a Filters plugin in Delphi
- add the tutorial 'FiltersPlugin_Noise\SrcC' in C/C++ : a tutorial on how to create a Filters plugin in C/C++, with Microsoft Visual Studio C++ Express
- add the tutorial 'FiltersPlugin_Noise\SrcC2' in C/C++ : a tutorial on how to create a Filters plugin in C/C++, with Eclipse CDT and MinGW compiler

V2_1-2006_07:

** API change
- important change : all type is now prefixed with 'TF', for 'Type Filters' (Delphi API have both definition for compatibility).
- image : rename function 'getPixelData' to 'getPixelAsSingle'
** new filters
- add filterMeans
- add filterImageInfo
- add filterLog
** improvements
- filterSUSAN : manage mask (the calcul of the USAN are special for pixels who are near the mask)
- filterGranularityExplorer : manage mask (the calcul of the granularity are special for pixels who are near the mask)
- filterArithmeticAdd : add parameter 'mode'
- filterCoOccurrenceMatrix : add features calculation (energy,entropy,contrast,inverse difference moment, homogeneity)
- filterCoOccurrenceMatrix : add mask management
- filterCoOccurrenceMatrix : add normalization of the GLCM
- filterCoOccurrenceMatrix : change calcul to have Neighbor(i,j)==Neighbor(j,i)
- filterAdjust : add automatic normalization
- filtersDll : add function 'image_intensity'
- filtersDll : add function 'image_luminosity'
- filtersDll : add function 'image_color32'
- filtersDll : add function 'image_gray32'
- filtersDll : add function 'getLastError'
- filtersDll : add function 'image_createImageTest'
- filtersDll : add function 'image_eraseImage'
- filtersDll : add function 'image_eraseOrCreateImageLike'
- filtersDll : add function 'image_copyImageToImage'
- filtersDll : add function 'image_redComponent', 'image_greenComponent', 'image_blueComponent'
- filtersDll : add function 'image_setPixel'
- filtersDll : add function 'image_setPixelAsSingle'
- filtersDll : add function 'image_getPixel'
- filtersDll : add function 'image_getPixelAsSingle'
- filtersDll : add function 'image_getPixelAsString'
- filtersDll : add function 'image_drawLine'
- filtersDll : add function 'image_drawLineSegment'
- filtersDll : add function 'image_drawLinesSegment'
- filtersDll : add function 'image_drawRect'
- filtersDll : add function 'image_drawRectFilled'
- filtersDll : add function 'image_drawDisk'
- filtersDll : add function 'image_HSLtoRGB'
- imageIO.createImageFromFile : check if file exist
** bugs correction
- filtersDll wrapper C : correction from rusman rusyadi (see Forum on 2006-06-07)
- Wrapper C : type TFBlob : member [segmentList] : "TFSegmentList segmentList;" in place of "PFSegment segmentList;"

V2_0-2006_05:

** new filters
- add filterCoOccurrenceMatrix
- add filterStackAnalyser
- add filterEnvelope
** improvements
- filterContrastExplorer : add parameter mode (NORMAL/NEGATIVE_CONTRAST/POSITIVE_CONTRAST)
- imageIOVideo : optimisation of method createImageFromBitmap(), by fobia@online.fr
- image : add method getPixelAsString(), inspired by fobia@online.fr
- filterTest : add viewer tool 'Pixel info'
- filterSobel : add angle calculation
- filterSobel : manage RegionOfInterest
- filterSobel : manage mask
- filterCopy : add parameter 'outputColor'
- filterNonMaximaSupression : remove parameter 'precision'
- filterNonMaximaSupression : add parameter 'gain'
- filterNonMaximaSuppression : manage RegionOfInterest
- filterNonMaximaSuppression : manage mask
- filterSUSAN : use abstractfilterNeighbors
- filterSUSAN : add angle calculation
- filterArithmeticSubstract : add output 'deltaTotal'
- filterCorrelation : manage extreme case (empty image)
- filterGranularityExplorer : add parameter 'differenceThreshold'
- filterCopy : add parameter 'mask'
- filterArithmeticSubstract : use abstractfilterNeighbors
- filterArithmeticSubstract : manage RegionOfInterest
- filterBlobRepositioning2 : if exist a learned image, then the output image will have the same size than it
- filterArithmeticConstantAdd : manage mask
** api change
- filterArithmeticSubstract : rename output 'normalizedDeltaTotal' to 'deltaTotalNormalized', and change type to Float
- filtersDll : change API of setParameterImages
	procedure setParameterImages(const aHandle : Integer; const aName: PChar; const aImages: ArrayOfPBitmap32); far; stdcall;
    to
	procedure setParameterImages(const aHandle : Integer; const aName: PChar; const aImages: PArrayOfPBitmap32); far; stdcall;
- filterDll : change API of setRegionOfInterest
	procedure setRegionOfInterest(const aHandle : Integer; const roi : TRect); stdcall; export;
    to
	procedure setRegionOfInterest(const aHandle : Integer; const roi : PRect); stdcall; export;
** bugs correction
- filterConvolution : correction
- filterSobel : correction 
- filterNonMaximaSupression : correction
- filterRotation : correction bug in case of "interpolationMode"=1, "monitoring"=default=true and "outImageMonitoring"=nil
- filterBlur : correction bug with ROI
** general
- sourceforge : use Subversion
- add abstractfilterNeighbors class
- add abstractfilterNeighbor3 class
- filters : parameters name are now case-insensitive
- filtersDll : new offical C API

V1_7-2006_03:

-
- filterCorrelation : correction of bug 'div by zero'
- filterBlobExplorer : add output image 'imageBlobIndex'
- FiltersTest : add drag and drop image files to load
- filterBlobGrouping : added
- filterGranularityExplorer : correction of bug 'différence horizontale non calculée'
- filtersDll : change API of getOutputImages
	function getOutputImages(const aHandle : Integer; const aName : PChar) : ArrayOfPBitmap32;
    to
	function getOutputImages(const aHandle : Integer; const aName : PChar) : PArrayOfPBitmap32;
- filtersTest : correction of viewtool 3D : image was shifted
- filterStandardDeviation : add parameter 'showOnlyROI'
- filtersDll : change API of getOutputPointers
	function getOutputPointers(const aHandle : Integer; const aName : PChar) : ArrayOfPointers;
    to
	function getOutputPointers(const aHandle : Integer; const aName : PChar) : PArrayOfPointers;
- filterExplorer : add parameter 'precision'
- filterArithmeticConstantAdd : now constant can be negative (from -255 to +255)
- filterTest : Explorer : correction error on increment of scrollbar x and y; and add textbox to show x and y
- filterTest : add viewer tool 'Explorer'
- filterBlobExplorer : add parameter 'ignoreBlobsOnImageEdges'
- filterBlobExplorer : remove optimisation : use real Intensity in place of only the Blue RGB component part
- filterBlobRepositioning2 : correction bug in extractBlobRealImage (case when blobs is null after the rotation)
- filterBlobRepositioning2 : add parameter 'backgroundColor'
- filterDll : filter parameter Integer use integer on 64bits in place of 32bits
- filterDll : add mask functions
- filterDll : add filter 'filterImageCreator'
- filterDll : add function 'getParameterHelp'
- filterMorphology : add custom structuredElement
- filtersDll : correction of drawDisk, and add antialiasing parameter

history

V3.3-2009_12:

V3.1-2007_10:

V3.0-2007_01:

V2_1-2006_07:

V2_0-2006_05:

V1_7-2006_03:

V1_6-2005_12:

V1_5-2005_10:

V1_4-2005_09:

V1_3-2005_07:

V1_2-2005_05:

First release of the 'Filters' open source imaging library.: