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List:       koffice-devel
Subject:    Review Request: Krita: Gaussian Blur Filter
From:       schumifer () hotmail ! com
Date:       2009-12-13 18:42:30
Message-ID: 20091213184230.20777.55373 () localhost
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This is an automatically generated e-mail. To reply, visit:
http://reviewboard.kde.org/r/2369/
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Review request for KOffice.


Summary
-------

This patch adds a real Gaussian Blur Filter (floating point kernel).

The horizontal and vertical components are computed separately (significant speed \
gains especially with larger radii) by performing convolution twice.

In the process a number of changes have been made:

- Convolution computation is performed using floating point numbers.
- Kernels are defined using matrices provided by the Eigen Library.
- Removed older 3x3 Gaussian Blur Filter.
- Updated all other convolution filters to new system.


Diffs
-----

  /trunk/koffice/krita/image/kis_convolution_kernel.h 1062071 
  /trunk/koffice/krita/image/kis_convolution_kernel.cc 1062071 
  /trunk/koffice/krita/image/kis_convolution_painter_impl.h 1062071 
  /trunk/koffice/krita/image/kis_generic_colorspace.h 1062071 
  /trunk/koffice/krita/plugins/colorspaces/ctlcs/KoCtlConvolutionOp.h 1062071 
  /trunk/koffice/krita/plugins/colorspaces/ctlcs/KoCtlConvolutionOp.cpp 1062071 
  /trunk/koffice/krita/plugins/filters/blur/CMakeLists.txt 1062071 
  /trunk/koffice/krita/plugins/filters/blur/blur.cpp 1062071 
  /trunk/koffice/krita/plugins/filters/blur/kis_blur_filter.cpp 1062071 
  /trunk/koffice/krita/plugins/filters/blur/kis_gaussian_blur_filter.h PRE-CREATION 
  /trunk/koffice/krita/plugins/filters/blur/kis_gaussian_blur_filter.cpp PRE-CREATION \
  /trunk/koffice/krita/plugins/filters/blur/kis_wdg_gaussian_blur.h PRE-CREATION 
  /trunk/koffice/krita/plugins/filters/blur/kis_wdg_gaussian_blur.cpp PRE-CREATION 
  /trunk/koffice/krita/plugins/filters/blur/wdg_gaussian_blur.ui PRE-CREATION 
  /trunk/koffice/krita/plugins/filters/convolutionfilters/convolutionfilters.h \
1062071   /trunk/koffice/krita/plugins/filters/convolutionfilters/convolutionfilters.cpp \
1062071   /trunk/koffice/krita/plugins/filters/imageenhancement/kis_simple_noise_reducer.cpp \
1062071   /trunk/koffice/krita/plugins/filters/unsharp/kis_unsharp_filter.cpp 1062071 \
  /trunk/koffice/libs/pigment/KoColorSpace.h 1062071 
  /trunk/koffice/libs/pigment/KoColorSpaceAbstract.h 1062071 

Diff: http://reviewboard.kde.org/r/2369/diff


Testing
-------

No visible regressions.

Sometimes the filter does not work correctly (esp. with larger kernels).


Thanks,

antiquark

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