* Revised PNG palette optimization
* Added some debug logging in coders/png.c.
* More precise blur values for Lanczos2Sharp and LanczosSharp.
* Added location of first Mitchell crossing (=8/7) to the filters data
structure.
* Added Lanczos2D* filters now named Lanczos2*
* Reorganization of AcquireFilter() to make it work better
* Clearer EWA filters (LanczosSharp etc) comments.
* Added LanczosSharp (3-lobe Lanczos with sharpening)
* Filter sharpening factors are also always applied regardless of usage.
* CubicBC filter formulas simplified by constant folding. In
particular, P1 coefficient (always zero) removed from coeff.
* Revert the Robidoux filter to a Keys cubic with C=(108 sqrt 2-29)/398
(as already specified in the documentation).
* Ignore PS bounding box offsets if -page is set.
* Add support for -evaluate exp.
OBS-URL: https://build.opensuse.org/package/show/graphics/ImageMagick?expand=0&rev=47
* Added "filter:sigma" expert setting defining the 'sigma' for the Gaussian
filter only. This is similar in action to 'blur' but only for Gaussians,
and does not modify the filters support, allowing you to set a very small
sigma, without the function 'missing' all pixels.
* Patch for DrawableRotation() and DrawableTranslation()
* The webp format requires the webpconv delegate program (experimental).
* Replaced "Robidoux" with Cubic 'Keys' filter that is near equivelent to
the previous sharped "Lanczos2D" filter. (C=0.31089212245300069)
This also is very similer to a Mitchell filter but specifically designed
for EWA use and is the new default filter for Distorting Images.
* Added new filter 'Lanczos2D' a 2-lobe Lanczos as defined by
Andreas Gustafsson in his thesis "Interactive Image Warping" (page 24)
http://www.gson.org/thesis/warping-thesis.pdf
* Added filter "Robidoux" which is a slightly sharpened version of the
"Lanczos2D" filter (blur=0.958033808) specifically designed to be less
'blurry' for horizontal and vertical lines in no-op distortions.
* Add support for "pattern:vertical2" and "pattern:horizontal2".
* Add support for "pattern:vertical3" and "pattern:horizontal3".
* Properly handle PSD layers with negative offsets.
* Added sqrt(2) bluring default for Gaussian Filter if used as
a Cylindrical EWA filter. This resulted removing the last aliasing
issue that was present in tests for Gaussian EWA resampling. Of course
it is still a very blury filter for default use in EWA.
* Adjusted Variable Mapping Blur Composition so user arguments actual
relate properly to the sigma of the blur for a maximum mapping value.
* Fix horizon anti-alising for output-scaled perspective distortions.
* 'Bessel' filter is now offically and more accuritally named 'Jinc'
however 'Bessel' while not visible as a filter option can still be used
OBS-URL: https://build.opensuse.org/package/show/graphics/ImageMagick?expand=0&rev=45
* Automatically set the quantum depth to 16 for HDRI.
* IPTC profile not always wrapped properly inside an 8BIM profile.
* TIFF tile geometry must be divisible by 16.
* Rename of SincPolynomial to SincFast for easier user understanding.
Ditto for LanczosChebyshev to LanzcosFast.
* Switch default resize filters to using the faster SincPolynomial
filter by default internally. However 'Sinc' will still use the
Trigonometric function, and can be used to assign the trig version
of Sinc() to filters using the filter expert options.
* The default filter for 'distort' was found to be a very blurry inaccurate
filter function. It was removed and replaced with a correct Gaussian
filter (as used by resize)
* Added a switch so that "-interpolate filter" will force the use of
a cylindrical filter for ALL pixels in distorted images. That is you can
use that switch to use a cylindrical filter even for images that are
being enlarged by the distortion. However EWA is still currently using
a fixed 2.0 sampling radius. This switch complements the use of "-filter
point" which turns off EWA filters in favor of interpolation for all
pixels in a distorted image. BOTH switches should not be used together.
* A bug in the support radius of the EWA resampling function was found,
now that correctly defined resize filters are being used. Suddenly Normal
Gaussian distortions are not so blurry, and tests with distortions of
the 'Rings' image show extremely good and clear results, with only minimal
blurring. The filter 'blur' expert option can be used to adjust this
further.
* Don't negate the geometry offset for the -extent option.
* The RGBO format is now listed as a supported format.
* Added the Nicolas Robidoux and Chantal Racette Lanczos resize filter
OBS-URL: https://build.opensuse.org/package/show/graphics/ImageMagick?expand=0&rev=43
* Eliminate useless message about assuming zero delay when writing
a single-frame MNG, and changed it from Error to Warning when
writing a multiple-frame MNG.
* Only use the first alpha channel in PSD image.
* Only use XPM complying colors for XPM images (e.g. green is rgb(0,255,0)).
* Eliminate bogus "invalid colormap index" when pinging ICO images.
* Support -set density / units.
* Properly map PNG intent to image->rendering_intent
* The orient option sometimes improperly set "undefined" (reference
http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=16795).
* Only list orientation options for the -list orientation option (reference
http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=16801).
* Return proper standard deviation for combined channels (reference
http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=16786).
* Handle transparency properly for the PSD image format.
* Emit a warning if the PNG encoder can't satisfy the color type and
bit depth requested with a "-define" directive.
* The -fx 2e+6/1e+5 argument no longer returns the wrong results (reference
http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=16833).
* Add -subimage-search option to the compare utility.
* Throw exception if image size differs for the compare program but the
-subimage-search option is not specified.
OBS-URL: https://build.opensuse.org/package/show/graphics/ImageMagick?expand=0&rev=38
* Fixed bug in equal-size tile cropping, when image has a page offset.
* The -recolor 4x4 matrix is now interpretted properly (previously it
summed rather attenuating the alpha channel).
* Support writing 1-bit PSD images.
* Support LCMS 2.0.
* Improved WMF support under Windows.
* The new coders/png.c was failing to read a 1-bit paletted image properly.
* Finished eliminating the deprecated direct references to members of
the png_info structure. ImageMagick can now be built with libpng-1.5.
* Respect the -density option when rendering a Postscript or PDF image.
* Distort barrel no longer complains when 3 arguments are given (reference
http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=15883).
* Support -direction left-to-right option for rendering text
* coders/png.c: Eliminated support of libpng versions older than 1.0.12.
* Relocated the new, misplaced png_get_rowbytes() call.
* Updated setjmp/longjmp/jmpbuf usage to work with libpng-1.5.
* Add support for monochrome PSD images.
* VignetteImage() no longer crashes when x and y arguments are both greater
than half the width (x) and height (y) of the image.
* Eliminated some of the deprecated direct references to members of
the png_info structure. This must be finished before we can build
with libpng-1.5.
* The animate program no longer loops twice when -loop 1 is specified.
* The caption format would sometimes hang when the text was not UTF-8.
* Don't gamma correct log to linear color conversion unless the -gamma is
specified (reference
http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=15799).
* Detect CMYKProcessColor AI tag.
* Delete image from command line cache for -write option.
* Add support for the Adobe Large Document format.
* Recognize -remap option for the mogrify utility.
* The default Helvetica font is not always available, check for
Century Schoolbook too (reference
http://www.imagemagick.org/discourse-server/viewtopic.php?f=2&t=15780).
OBS-URL: https://build.opensuse.org/package/show/graphics/ImageMagick?expand=0&rev=25
* Permit user to get virtual pixels with a region width of 0.
* Reformulate the jinc() functio so that the main peak is of amplitude of 1.
* Resampling filter must respect the image virtual pixel method.
* The -evaluate-sequence option behaves like -evaluate except it operates
on a sequence of images.
* Add support for the Adobe Large Document format.
* Add support for the -maximum and -minimum options.
* Check to see if ICON image width /height exceeds that of the image canvas.
* Set the DPX descriptor to Luma only if the image type is not TrueColor.
* Add support for -fx airy(), j0(), j1(), jinc(), and sinc() (reference
http://www.imagemagick.org/discourse-server/viewtopic.php?f=2&t=15685).
* Don't embed an XMP profile in an EPS image for now.
* Insufficient image data in EPT is a warning rather than an error.
* Respect -type TrueColor when writing gray DPX images.
* Fix problem reading 10-bit grayscale DPX images when scanline length is
not a multiple of 3.
* BMP has an alpha channel, it was treated as an opacity channel.
* Write 10-bit grayscale DPX images properly.
* Detect PDF ICCBased colorspace.
* Finalized -set option:convolve:scale kernel normalize/scale option
* TransformImage() resets the image blob when called in the PICT decoder;
use SetImageExtent() instead.
* Support PSD RLE compression.
* The jpeg:extent define sometimes exceeded the specified limit.
* Resolve "too many open files" (reference
http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=15546).
* Added Correlate method which does a Convolve without reflecting the kernel.
* Initialize grayscale colormap for PSD images.
* Addition Third-level Subtractive Morphology Methods:
EdgeIn, EdgeOut, Edge, TopHat, BottomHat
* Ensuring original kernels passed to morphology are cloned before being
modifified for use by specific methods (EG: convolve scale/normalize)
* display -immutable to display transparent image without a checkboard.
* Make -define png:color-type less persnickity about what it will accept.
* added use of -precision in 'showkernel' output of -morphology
* correct use of a 'reflected kernel' for 'Convolve' 'Dilate' and
'Distance' Morphology primatives. This does not have a performance hit,
though is only truely applicable when the kernel is asymmetric. Note that
'Erode' does not use a 'reflected' kernel, so that 'Open' and 'Close'
operations work properly. This 'reflected usage is defined by online
morphology lecture notes (Google for "EECE Binary Morphology")
* Added convolve kernel scaling setting "-set option:convolve:scale N"
If undefined morphology convolve does not do any scaling or normalization
of the convolution kernel. A value of 0.0 causes normalization for both
zero and non-zero (added weights) kernel types.
* Speed up reading the PSD image format.
* Add the -precision option. Use it to set the maximum number of significant
digits to be printed.
* Add -features option to the identify program to display channel features.
* Add -unique option to the identify program to display channel features.
* Add support for compact floating point (i.e. -depth 16 -define
quantum:format=floating-point).
* Transparent images no longer flicker on certain system when using the
display program.
* Permit interactive resizing with the display program.
* Support heterogeneous distributed processing, see
http://www.imagemagick.org/script/architecture.php#distributed.
* Fix semaphore assertion when reading a corrupt image with Magick++.
* Add support for -brightness-contrast option.
* Add support for the BGRA raw image format.
* Added Kernel Generator to generate kernels from user strings, which
allows the generation in many built in kernels for both Convolution
and other Morphological methods. New Kernels currently include..
Convolution: Gaussian, Blur, Comet
Morphological: Rectangle, Square, Diamond, Disk, Plus
Distance: Chebyshev, Manhatten, Knight, Euclidean
And both old and new (rectangular) user defined kernel specifications
including the use of 'nan' to represent elements which are not part
of the kernel definition. List built-in kernel types use "-list kernel"
* Added -morphology {method}[:{iteration}] {kernel_string}
Initial methods includes no only the basic morphology methods: Dilate,
Erode, Open, Close; and a pixel color preserving 'Intensity' version, but
also the special methods: Convolve, and Distance. Of course the
appropriate kernel should be provided for each specific method.
* Add OpenCL-enabled filter (e.g. convert image.png -process
"convolve '-1, -1, -1, -1, 9, -1, -1, -1, -1'" image.jpg).
* Added StringTo...() processing functions
OBS-URL: https://build.opensuse.org/package/show/graphics/ImageMagick?expand=0&rev=23
