libiqa/1.1.2

Image quality assessment C library

This is a build2 package for the iqa C library. It implements MSE, PSNR, SSIM, MS-SSIM, and MS-SSIM* metrics for 8-bit images.

Usage

To start using libiqa in your project, add the following depends value to your manifest, adjusting the version constraint as appropriate:

depends: libiqa ^1.1.2

Then import the library in your buildfile:

import libs = libiqa%lib{iqa}

The canonical public header is <iqa/iqa.h>. The unqualified form <iqa.h> is also accepted (via pkg-config include paths).

Configuration variables

... More

version	1.1.2
license	BSD-3-Clause
repository	https://pkg.cppget.org/1/queue/testing
download	libiqa-1.1.2.tar.gz
sha256	21f8f712a32f006d7ad0f875170047a2eaf1a8bacefaa130be82cd13448d4320

project	iqa
url	github.com/tjdistler/iqa
doc-url	tdistler.com/iqa
src-url	github.com/tjdistler/iqa
package-url	github.com/build2-packaging/iqa
package-email	packaging@build2.org
topics	image quality ssim psnr mse

Builds

toolchain	public-0.18.1
target	x86_64-apple-darwin23.5.0
tgt config	macos_14-clang_15.0-static_O3
timestamp	2026-08-17 10:56:10 UTC (20:31:08 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-apple-darwin23.5.0
tgt config	macos_14-gcc_14_homebrew-static_O3
timestamp	2026-08-17 10:55:46 UTC (20:31:32 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-apple-darwin23.5.0
tgt config	macos_14-clang_15.0-O3
timestamp	2026-08-17 10:55:25 UTC (20:31:53 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-apple-darwin23.5.0
tgt config	macos_14-gcc_14_homebrew-O3
timestamp	2026-08-17 10:55:03 UTC (20:32:15 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-apple-darwin23.5.0
tgt config	macos_14-clang_15.0
timestamp	2026-08-17 10:54:38 UTC (20:32:40 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-apple-darwin23.5.0
tgt config	macos_14-gcc_14_homebrew
timestamp	2026-08-17 10:54:18 UTC (20:33:00 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
tgt config	linux_debian_12-clang_18_libc++-static_O3
timestamp	2026-08-17 10:41:38 UTC (20:45:40 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
tgt config	linux_debian_12-clang_18_libc++-O3
timestamp	2026-08-17 10:41:15 UTC (20:46:03 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
tgt config	linux_debian_12-clang_18_libc++
timestamp	2026-08-17 10:41:03 UTC (20:46:15 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
tgt config	linux_debian_12-clang_18-static_O3
timestamp	2026-08-17 10:40:31 UTC (20:46:47 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
tgt config	linux_debian_12-clang_18-O3
timestamp	2026-08-17 10:40:21 UTC (20:46:56 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
tgt config	linux_debian_12-clang_18
timestamp	2026-08-17 10:39:54 UTC (20:47:24 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-clang_22_libc++-static_O3
timestamp	2026-08-17 10:32:14 UTC (20:55:04 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-clang_22_libc++-O3
timestamp	2026-08-17 10:31:52 UTC (20:55:26 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-clang_22_libc++
timestamp	2026-08-17 10:31:46 UTC (20:55:32 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-clang_22-static_O3
timestamp	2026-08-17 10:31:33 UTC (20:55:45 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-clang_22-O3
timestamp	2026-08-17 10:31:13 UTC (20:56:05 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-clang_22
timestamp	2026-08-17 10:31:08 UTC (20:56:10 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-w64-mingw32
tgt config	windows_10-gcc_15.2_mingw_w64-static_O2
timestamp	2026-08-17 10:31:01 UTC (20:56:17 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-w64-mingw32
tgt config	windows_10-gcc_15.2_mingw_w64-O2
timestamp	2026-08-17 10:30:56 UTC (20:56:22 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-freebsd15.0
tgt config	freebsd_15-clang_19
timestamp	2026-08-17 10:30:47 UTC (20:56:31 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-freebsd15.0
tgt config	freebsd_15-clang_19-O3
timestamp	2026-08-17 10:30:43 UTC (20:56:35 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-freebsd14.1
tgt config	freebsd_14-clang_18
timestamp	2026-08-17 10:30:37 UTC (20:56:41 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-microsoft-win32-msvc14.5
tgt config	windows_10-msvc_18-static_O2
timestamp	2026-08-17 10:30:36 UTC (20:56:42 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-gcc_16-static_O3
timestamp	2026-08-17 10:30:31 UTC (20:56:47 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-microsoft-win32-msvc14.5
tgt config	windows_10-clang_21_msvc_18-static_O2
timestamp	2026-08-17 10:30:28 UTC (20:56:50 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-microsoft-win32-msvc14.5
tgt config	windows_10-clang_21_msvc_18-O2
timestamp	2026-08-17 10:30:25 UTC (20:56:53 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-microsoft-win32-msvc14.5
tgt config	windows_10-msvc_18-O2
timestamp	2026-08-17 10:30:25 UTC (20:56:53 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-microsoft-win32-msvc14.5
tgt config	windows_10-msvc_18
timestamp	2026-08-17 10:30:24 UTC (20:56:54 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-w64-mingw32
tgt config	windows_10-gcc_15.2_mingw_w64
timestamp	2026-08-17 10:30:18 UTC (20:57:00 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-gcc_16-ndebug_O3
timestamp	2026-08-17 10:30:13 UTC (20:57:04 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_ubuntu_24.04-gcc_13-bindist
timestamp	2026-08-17 10:30:10 UTC (20:57:08 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-microsoft-win32-msvc14.3
tgt config	windows_10-msvc_17
timestamp	2026-08-17 10:30:09 UTC (20:57:09 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-microsoft-win32-msvc14.5
tgt config	windows_10-clang_21_msvc_18
timestamp	2026-08-17 10:30:07 UTC (20:57:11 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-gcc_16-O3
timestamp	2026-08-17 10:30:05 UTC (20:57:13 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-apple-darwin22.5.0
tgt config	macos_13-clang_15.0
timestamp	2026-08-17 10:29:52 UTC (20:57:26 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-gcc_16
timestamp	2026-08-17 10:29:46 UTC (20:57:32 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_fedora_44-gcc_16-bindist
timestamp	2026-08-17 10:29:44 UTC (20:57:34 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-gcc_15
timestamp	2026-08-17 10:29:43 UTC (20:57:35 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-gcc_15-O3
timestamp	2026-08-17 10:29:41 UTC (20:57:36 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_fedora_43-gcc_15-bindist
timestamp	2026-08-17 10:29:37 UTC (20:57:41 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-gcc_14-bindist
timestamp	2026-08-17 10:29:28 UTC (20:57:50 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-clang_21_libc++
timestamp	2026-08-17 10:29:27 UTC (20:57:51 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-freebsd15.0
tgt config	freebsd_15-clang_19-static_O3
timestamp	2026-08-17 10:29:17 UTC (20:58:00 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-clang_21
timestamp	2026-08-17 10:29:13 UTC (20:58:05 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
tgt config	linux_debian_12-gcc_14-static_O3
timestamp	2026-08-17 10:28:17 UTC (20:59:01 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
tgt config	linux_debian_12-gcc_14-ndebug_O3
timestamp	2026-08-17 10:27:51 UTC (20:59:26 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
tgt config	linux_debian_12-gcc_14-O3
timestamp	2026-08-17 10:27:41 UTC (20:59:37 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
tgt config	linux_debian_12-gcc_14
timestamp	2026-08-17 10:27:11 UTC (21:00:06 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_ubuntu_26.04-gcc_15-bindist
timestamp	2026-08-17 10:13:50 UTC (21:13:28 hours ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
tgt config	linux_debian_12-gcc_13
timestamp	2026-08-17 10:08:01 UTC (21:19:16 hours ago)
result	success \| log \| rebuild

Changes

2011-07-06  1.1.2 (rev 40)

 - Fixed MS-SSIM seg-fault issue when height greater than width (#3349231).
 - Fixed linker warnings on Windows debug builds.

2011-04-15  1.1.1 (rev 36)

 - Added 64-bit build configurations on Windows.
 - Fixed 64-bit rounding bug in tests (#3286061).
 - Fixed MS-SSIM buffer overflow bug for images that don't scale to an even 
   multiple of 2 (#3288043). Added corresponding unit test.

2011-04-09  1.1.0 (rev 30)

 - Added MS-SSIM algorithm.
 - Added MS-SSIM* algorithm.
 - Fixed bug (#3269715) that caused SSIM to return inflated results when using
   custom SSIM arguments.
 - Fixed bug (#3269702) where the SSIM algorithm was returning NAN instead of
   INFINITY on error. Since NAN always fails comparisons (even with itself),
   there was no way for an application to determine if an error occurred.
 - Improved the performace of the decimate operation.

2011-04-01  1.0.0 (rev 12)

 - First release. Supports MSE, PSNR, and SSIM.