Table of content

New Features

New Algorithms

Library	Algorithm	Comments
Shape analysis	Label Analysis 2d
Shape analysis	Label Analysis 3d
Image features detection operations	Hough lines detection
Image features detection operations	Computation of accumulator matrix for Hough lines detection
Image features detection operations	Extension of Hough lines detection based on gradient orientation
Image features detection operations	Computation of accumulator matrix for extension of Hough lines detection
Filtering image operations	Multiscale vessel enhancement 2d
Filtering image operations	Multiscale vessel enhancement 3d
Image intensity transformations	Index Compacting

New Shape Measures

New measures for Shape analysis library

Measure Type	Measure	Comments
Statistics	SumAbs
Statistics	MeanAbs
Image Borders Contact	Touch Image Borders
Image Borders Contact	Image Borders Contact 2d
Image Borders Contact	Image Borders Contact 3d

New Low Level features

New C++ features

Library	Feature	Comments
IPSDKSerialization library	readFromBinaryFile / writeToBinaryFile	Add of functions allowing to serialize data to/from binary file

New Python features

IPSDK now support python 2.7, 3.5 and 3.6.
New python bridge between IPSDK and Avizo (Avizo is a trademark of VSG, Visualization Sciences Group).
New python bridge between IPSDK and DragonFly (DragonFly is a trademark of ORS, Object Research Systems).
Add possibility to install PyIPSDK into custom user directory to avoid need for administrative privilege
Add support for DataItem direct print

Behavior modifications

Shape analysis and measurement framework (see Shape Analysis and Measurement) has been revisited and is now able to :
- handle input geometric calibration (used during measurement process)
- handle multiple inputs (shape collections and images)
- work with preprocessed images computed from an input image

Modified Algorithms

Library	Algorithm	Comments
Filtering image operations	Anisotropic diffusion 2d and Anisotropic diffusion 3d	gaussian ratio coverage can now be more precisely defined
Image features detection operations	Harris corner detection 2d and Harris corner detection 3d	gaussian ratio coverage can now be more precisely defined
Filtering image operations	Gaussian Gradient 2d and Gaussian Gradient 3d	gaussian ratio coverage can now be more precisely defined
Filtering image operations	Gaussian Hessian 2d and Gaussian Hessian 3d	gaussian ratio coverage can now be more precisely defined
Filtering image operations	Gaussian Smoothing 2d and Gaussian Smoothing 3d	gaussian ratio coverage can now be more precisely defined
Filtering image operations	Laplacian DoG 2d and Laplacian DoG 3d	gaussian ratio coverage can now be more precisely defined
Filtering image operations	Difference of Gaussian based Laplacian deblur 2d and Difference of Gaussian based Laplacian deblur 3d	gaussian ratio coverage can now be more precisely defined
Filtering image operations	Richardson-Lucy deblur 2d and Richardson-Lucy deblur 3d	gaussian ratio coverage can now be more precisely defined
Filtering image operations	Unsharp Mask 2d and Unsharp Mask 3d	gaussian ratio coverage can now be more precisely defined
Image Registration	Extract grey signed features 2d and Extract grey signed features 3d	gaussian ratio coverage can now be more precisely defined
Image Registration	Image 2d registration using grey signed features and Image 3d registration using grey signed features	gaussian ratio coverage can now be more precisely defined
Statistic on images	Law's 2D Texture Energy Measures and Law's 3D Texture Energy Measures	gaussian ratio coverage can now be more precisely defined
Shape analysis	Shape Analysis 2d	Add possibility to handle multiple shape collections and images as input
Shape analysis	Shape Analysis 3d	Add possibility to handle multiple shape collections and images as input
Image intensity transformations	Image Standardization	Add the possibility to give an additional mask as input parameter
Arithmetic image operations	Formula 2d image algorithm and Formula 3d image algorithm	add support for absolute and euclidian norm computation
Arithmetic image operations	Formula 2d image algorithm and Formula 3d image algorithm	add support for distance computation
Classification image operations	Image dimensionality reduction using PCA	Add the possibility to give an additional mask as input parameter
Basic Morphological image operations	Closing 2d	Add new parameter InOptBorderExtensionPolicy allowing to request an extension of borders to avoid border local errors
Basic Morphological image operations	Closing 3d	Add new parameter InOptBorderExtensionPolicy allowing to request an extension of borders to avoid border local errors
Basic Morphological image operations	Opening 2d	Add new parameter InOptBorderExtensionPolicy allowing to request an extension of borders to avoid border local errors
Basic Morphological image operations	Opening 3d	Add new parameter InOptBorderExtensionPolicy allowing to request an extension of borders to avoid border local errors
Binarization image operations	TopHat 2d	Add new parameter InOptBorderExtensionPolicy allowing to request an extension of borders to avoid border local errors
Binarization image operations	TopHat 3d	Add new parameter InOptBorderExtensionPolicy allowing to request an extension of borders to avoid border local errors
Advanced Morphological image operations	Distance Map 2d	Algorithm transferred to Basic Morphological image operations.
Advanced Morphological image operations	Distance Map 3d	Algorithm transferred to Basic Morphological image operations.
Basic Morphological image operations	Dilation 2d	Optimization in case of binary image and high kernel size (constant time algorithm in such case)
Basic Morphological image operations	Dilation 3d	Optimization in case of binary image and high kernel size (constant time algorithm in such case)
Basic Morphological image operations	Erosion 2d	Optimization in case of binary image and high kernel size (constant time algorithm in such case)
Basic Morphological image operations	Erosion 3d	Optimization in case of binary image and high kernel size (constant time algorithm in such case)
Classification image operations	K-Means++ cluster center initialization	Add the possibility to give an additional mask as input parameter
Classification image operations	Clusters assignment algorithm (clusters centroids given in input)	Add the possibility to give an additional mask as input parameter
Classification image operations	Clusters centroids computation algorithm	Add the possibility to give an additional mask as input parameter
Classification image operations	Image posterization from k-means results algorithm	Add the possibility to give an additional mask as input parameter
Classification image operations	K-means algorithm	Add the possibility to give an additional mask as input parameter

Modified Shape Measures

Measure Type	Measure	Comments
Formula	Arithmetic Formula and Logic Formula	add support for absolute and euclidian norm computation
Formula	Arithmetic Formula and Logic Formula	add support for distance computation

Modified Low Level features

Modified C++ features

Library	Feature	Comments
IPSDKGeometry	Updates on 2d and 3d shapes underlying data structures (meshes and polygons). Mesh3d class becomes a doubly connected edge list (ie an half-edge data structure)

Modified Python features

Improvement of convolution kernel management under python

Bug Fixes

Algorithms Bug Fixes

Library	Algorithm	Comments
Filtering image operations	Anisotropic diffusion 2d and Anisotropic diffusion 3d	correction of computation of kernel size for a given gaussian ratio
Image features detection operations	Harris corner detection 2d and Harris corner detection 3d	correction of computation of kernel size for a given gaussian ratio
Filtering image operations	Gaussian Gradient 2d and Gaussian Gradient 3d	correction of computation of kernel size for a given gaussian ratio
Filtering image operations	Gaussian Hessian 2d and Gaussian Hessian 3d	correction of computation of kernel size for a given gaussian ratio
Filtering image operations	Gaussian Smoothing 2d and Gaussian Smoothing 3d	correction of computation of kernel size for a given gaussian ratio
Filtering image operations	Laplacian DoG 2d and Laplacian DoG 3d	correction of computation of kernel size for a given gaussian ratio
Filtering image operations	Difference of Gaussian based Laplacian deblur 2d and Difference of Gaussian based Laplacian deblur 3d	correction of computation of kernel size for a given gaussian ratio
Filtering image operations	Richardson-Lucy deblur 2d and Richardson-Lucy deblur 3d	correction of computation of kernel size for a given gaussian ratio
Filtering image operations	Unsharp Mask 2d and Unsharp Mask 3d	correction of computation of kernel size for a given gaussian ratio
Image Registration	Extract grey signed features 2d and Extract grey signed features 3d	correction of computation of kernel size for a given gaussian ratio
Image Registration	Image 2d registration using grey signed features and Image 3d registration using grey signed features	correction of computation of kernel size for a given gaussian ratio
Statistic on images	Law's 2D Texture Energy Measures and Law's 3D Texture Energy Measures	correction of computation of kernel size for a given gaussian ratio
Filtering image operations	Anisotropic diffusion 2d and Anisotropic diffusion 3d	correct handling of image input range (especially in 16 bits image case)
Advanced Morphological image operations	Remove small shape 2d	correction of case where input image has no background value (no zero value)
Advanced Morphological image operations	Remove small shape 3d	correction of case where input image has no background value (no zero value)
Basic Morphological image operations	Distance Map 2d	correction of a bias in case of pixels which touch left border
Basic Morphological image operations	Distance Map 3d	correction of a global bias (error lower than unit)
Classification image operations	K-means algorithm	corrected crash when most eccentric element of a cluster was computed while all elements of the cluster had the same value
Filtering image operations	Median 2d	correction to allow to proceed images with small dimension along x axis
Image Geometric transformation	Image y-flip algorithm	correction to allow to proceed images with small dimension along x axis
Global measure image operations	X projection 2d : Statistic measurement along the y axis	correction to allow to proceed images with small dimension along x axis
Image intensity transformations	Forward Discrete Fourier Transform 2d and Backward Discrete Fourier Transform 2d	correction to allow to proceed images with small dimension along x axis
Basic Morphological image operations	Distance Map 2d	correction to allow to proceed images with small dimension along x axis
Shape analysis	Shape Filtering 2d	correction to avoid an error in case where input image is empty
Shape analysis	Shape Filtering 3d	correction to avoid an error in case where input image is empty
Advanced Morphological image operations	Seeded Watershed 2d and Seeded Watershed 3d	correction in case of basin mode (eWatershedOutputMode::eWOM_Basins), in this case algorithm was returning an error if input grey level image where 32 bits.
Image intensity transformations	Forward Discrete Fourier Transform 2d and Backward Discrete Fourier Transform 2d	correction of some memory leaks
Image intensity transformations	Forward Discrete Fourier Transform 3d and Backward Discrete Fourier Transform 3d	correction of some memory leaks

Measures Bug Fixes

Measure Type	Measure	Comments
Shape analysis	[Concept] Skeleton 2d Diameter	Some branch of squeleton where ignored which can lead to eroneous squeleton diameter values

Low Level Bug Fixes

C++ Bug Fixes

Library	Feature	Comments
IPSDKImageFile library	load tiff image file	Correction allowing to load RGBA tiff image file (Alpha channel is ignored)

Python Bug Fixes

Correction of some bugs occurring in python 2.7 and 3.X while handling path with extended ASCII characters.
Correction of PyIPSDK.createCenteredRotation returned transformation, output transformation was not centred
Correction of some bugs which may occur when returning sub elements from PyIPSDK structures (return of reference on no more existing objects)

Embedded applications

Component Wizard

added the "create python wrapping project" feature