ResampleHQ - Revision history

Mawazi: Reformatted list of matrices

2021-07-06T23:59:35Z

Reformatted list of matrices

← Older revision		Revision as of 01:59, 7 July 2021
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	Y′UV colorspaces have an associated matrix that defines RGB coefficients and Y′CbCr encoding ranges. It is very important to specify the correct matrix, or the video will be improperly processed and come out with slightly different brightness and colors.		Y′UV colorspaces have an associated matrix that defines RGB coefficients and Y′CbCr encoding ranges. It is very important to specify the correct matrix, or the video will be improperly processed and come out with slightly different brightness and colors.

	Matrix		<pre>
	Description		Matrix Description Red coefficient Green coefficient Blue coefficient Luma range Chroma range
	Red coefficient
	Green coefficient		TV.601 ITU‐R BT.470-2 0.299 0.587 0.114 16–235 (normal) 16–240 (normal)
	Blue coefficient		ITU‐R BT.601
	Luma range		SMPTE 170M
	Chroma range
	~~Notes~~		PC.601 0.299 0.587 0.114 0–255 (full) 0–255 (full)
	TV.601
	ITU‐R BT.470-2~~<br />~~		TV.709 ITU‐R BT.709 0.2125 0.7154 0.0721 16–235 (normal) 16–240 (normal)
	~~ITU‐R BT.601<br />~~
	~~SMPTE 170M~~		PC.709 0.2125 0.7154 0.0721 0–255 (full) 0–255 (full)
	0.299
	0.587		TV.240 SMPTE 240M 0.212 0.701 0.087 16–235 (normal) 16–240 (normal)
	0.114
	16–235 (normal)		PC.240 0.212 0.701 0.087 0–255 (full) 0–255 (full)
	16–240 (normal)
	~~Most sources will be this. YouTube expects this for all videos, even HD~~.		TV.FCC FCC 0.3 0.59 0.11 16–235 (normal) 16–240 (normal)
	PC.601
	0–255 (full)		PC.FCC 0.3 0.59 0.11 0–255 (full) 0–255 (full)
	0–255 (full)		</pre>
	TV.709
	ITU‐R BT.709
	0.2125
	0.7154
	0.0721
	16–235 (normal)
	16–240 (normal)
	~~Usually used only for HDTV sources.~~
	PC.709
	0–255 (full)
	0–255 (full)
	TV.240
	SMPTE 240M
	0.212
	0.701
	0.087
	16–235 (normal)
	16–240 (normal)
	~~Mainly used by old HDTVs.~~
	PC.240
	0–255 (full)
	0–255 (full)
	TV.FCC
	FCC
	0.3
	0.59
	0.11
	16–235 (normal)
	16–240 (normal)
	PC.FCC
	0–255 (full)
	0–255 (full)

Reel.Deal: minor cleanup

2020-06-11T15:58:12Z

minor cleanup

← Older revision		Revision as of 17:58, 11 June 2020
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	== Changelog ==		== Changelog ==

	~~===~~ Version 9 (Pending) ~~===~~		'''Version 9 (Pending)'''

	* Bug fix: fix resizing very small frames.		* Bug fix: fix resizing very small frames.
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	* FMA3/FMA4 vertical resampler.		* FMA3/FMA4 vertical resampler.

	~~===~~ Version 8 ~~===~~		'''Version 8'''

	* RGB8-specialized gamma corrections—15% faster color conversions.		* RGB8-specialized gamma corrections—15% faster color conversions.
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	* Bug fix: handle very tiny row widths.		* Bug fix: handle very tiny row widths.

	~~===~~ Version 7 ~~===~~		'''Version 7'''

	* Multi‐core optimizations.		* Multi‐core optimizations.
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	* Remove 64‐bit version temporarily.		* Remove 64‐bit version temporarily.

	~~===~~ Version 6 ~~===~~		'''Version 6'''

	* SSE Y′CbCr output conversions. All conversions now have SSE implementations.		* SSE Y′CbCr output conversions. All conversions now have SSE implementations.
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	* Bug fix: correct spelling of Spline36 and Mitchell–Netravali.		* Bug fix: correct spelling of Spline36 and Mitchell–Netravali.

	~~===~~ Version 5 ~~===~~		'''Version 5'''

	* Catmull–Rom, Gaussian, Hermite, Mitchell–Netraveli, Robidoux, Sinc, and SoftCubic kernels.		* Catmull–Rom, Gaussian, Hermite, Mitchell–Netraveli, Robidoux, Sinc, and SoftCubic kernels.
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	* Bug fix: scale chroma correctly.		* Bug fix: scale chroma correctly.

	~~===~~ Version 4 ~~===~~		'''Version 4'''

	* Bug fix: clamp out of range values caused by resizing.		* Bug fix: clamp out of range values caused by resizing.
	* Bug fix: don't process padding in RGB output.		* Bug fix: don't process padding in RGB output.

	~~===~~ Version 3 ~~===~~		'''Version 3'''

	* Sub‐pixel cropping.		* Sub‐pixel cropping.
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	* Minor optimizations.		* Minor optimizations.

	~~===~~ Version 2 ~~===~~		'''Version 2'''

	* Bug fix: correct chroma conversion.		* Bug fix: correct chroma conversion.
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	* Dithered output for RGB.		* Dithered output for RGB.

	~~===~~ Version 1 ~~===~~		'''Version 1'''

	* Initial release!		* Initial release!

Reel.Deal: add archived downloads section

2020-05-24T16:24:04Z

add archived downloads section

@@ Line 366: / Line 366: @@
 * Initial release!
 <br>
 == External Links ==

Reel.Deal at 16:07, 24 May 2020

2020-05-24T16:07:14Z

← Older revision		Revision as of 18:07, 24 May 2020
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	You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.		You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.


	== Changelog ==		== Changelog ==

Reel.Deal: /* License */

2020-05-24T16:06:41Z

License

← Older revision		Revision as of 18:06, 24 May 2020
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	This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.		This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

	You should have received a copy of the GNU General Public License along with this program. If not, see <~~[www.gnu.org/licenses/~~ http://www.gnu.org/licenses/]>.		You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.


	== Changelog ==		== Changelog ==

Reel.Deal: corrections

2020-05-24T16:01:59Z

corrections

← Older revision		Revision as of 18:01, 24 May 2020
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	\|-		\|-
	\| dstcolorspace		\| dstcolorspace
	\| The colorspace to convert to. See the [[#~~colorspaces~~\|Colorspaces table]] for possible values. Default is source colorspace.		\| The colorspace to convert to. See the [[ResampleHQ#Colorspaces\|Colorspaces table]] for possible values. Default is source colorspace.
	\|-		\|-
	\| srcmatrix		\| srcmatrix
	\| The source matrix. See the [[#~~matrices~~\|Matrices table]] for possible values. Default is "TV.601". Ignored if source colorspace is RGB.		\| The source matrix. See the [[ResampleHQ#Matrices\|Matrices table]] for possible values. Default is "TV.601". Ignored if source colorspace is RGB.
	\|-		\|-
	\| dstmatrix		\| dstmatrix
	\| The target matrix. See the [[#~~matrices~~\|Matrices table]] for possible values. Default is source matrix. Ignored if target colorspace is RGB.		\| The target matrix. See the [[ResampleHQ#Matrices\|Matrices table]] for possible values. Default is source matrix. Ignored if target colorspace is RGB.
	\|-		\|-
	\| dither		\| dither
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	\|-		\|-
	\| kernel		\| kernel
	\| The kernel to use while resizing. See the [[#~~kernels~~\|Kernels table]] for possible values. Default is "Spline36".		\| The kernel to use while resizing. See the [[ResampleHQ#Kernels\|Kernels table]] for possible values. Default is "Spline36".
	\|-		\|-
	\| karg1		\| karg1
	\| The first argument to give to the kernel. See the [[#~~kernels~~\|Kernels table]] for possible values.		\| The first argument to give to the kernel. See the [[ResampleHQ#Kernels\|Kernels table]] for possible values.
	\|-		\|-
	\| karg2		\| karg2
	\| The second argument to give to the kernel. See the [[#~~kernels~~\|Kernels table]] for possible values.		\| The second argument to give to the kernel. See the [[ResampleHQ#Kernels\|Kernels table]] for possible values.
	\|-		\|-
	\| kblur_x		\| kblur_x
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	\|-		\|-
	\| chroma_kernel		\| chroma_kernel
	\| The kernel to use when processing sub‐sampled chroma. See the [[#~~kernels~~\|Kernels table]] for possible values. Default is "Bilinear".		\| The kernel to use when processing sub‐sampled chroma. See the [[ResampleHQ#Kernels\|Kernels table]] for possible values. Default is "Bilinear".
	\|-		\|-
	\| chroma_karg1		\| chroma_karg1
	\| The first argument to give to the chroma kernel. See the [[#~~kernels~~\|Kernels table]] for possible values.		\| The first argument to give to the chroma kernel. See the [[ResampleHQ#Kernels\|Kernels table]] for possible values.
	\|-		\|-
	\| chroma_karg2		\| chroma_karg2
	\| The second argument to give to the chroma kernel. See the [[#~~kernels~~\|Kernels table]] for possible values.		\| The second argument to give to the chroma kernel. See the [[ResampleHQ#Kernels\|Kernels table]] for possible values.
	\|}		\|}

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	YV12		YV12
	A planar Y′UV 4:2:0 format, with chroma (UV) sub‐sampled to half the size of luma (Y′). Both width and height must be mod‐2. This is the format usually used with H.264, MPEG‐4, and web video formats.		A planar Y′UV 4:2:0 format, with chroma (UV) sub‐sampled to half the size of luma (Y′). Both width and height must be mod‐2. This is the format usually used with H.264, MPEG‐4, and web video formats.
	It is very important to provide the correct [[#~~matrices~~\|matrix]] when using Y′UV colorspaces, as the results will otherwise come out slightly wrong.		It is very important to provide the correct [[ResampleHQ#Matrices\|matrix]] when using Y′UV colorspaces, as the results will otherwise come out slightly wrong.

	Despite the actual requirements of these Y′UV colorspaces, Avisynth requires the final output of your script be of mod‐4 width. Because of this, most filters also require these colorspaces to be of mod‐4 width. The ability to use mod‐2 widths is kept as an expert option in ResampleHQ.		Despite the actual requirements of these Y′UV colorspaces, Avisynth requires the final output of your script be of mod‐4 width. Because of this, most filters also require these colorspaces to be of mod‐4 width. The ability to use mod‐2 widths is kept as an expert option in ResampleHQ.
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	ResampleHQ produces correct results using a high‐precision 100% linear pipeline. Because colorspace conversion and resizing are often essentially the same thing, we can perform both operations at once for higher performance and better quality.		ResampleHQ produces correct results using a high‐precision 100% linear pipeline. Because colorspace conversion and resizing are often essentially the same thing, we can perform both operations at once for higher performance and better quality.


	== Examples ==		== Examples ==

	Here is [http://web.archive.org/web/~~20170614162225~~/http://visibleearth.nasa.gov/view_rec.php?id=1438 "Earth's City Lights"], courtesy of NASA and Visible Earth. Note how the ResampleHQ image is much brighter overall, and shows faint light in completely new places around Canada, Alaska, western United States, and along coastlines.		Here is [http://web.archive.org/web/20091229212215/http://visibleearth.nasa.gov/view_rec.php?id=1438 "Earth's City Lights"], courtesy of NASA and Visible Earth. Note how the ResampleHQ image is much brighter overall, and shows faint light in completely new places around Canada, Alaska, western United States, and along coastlines.

	This image was cherry‐picked to show the detrimental effects gamma‐ignorant resizers have on images with high contrast. It also has an extremely high‐res source (4800×2400), which compounds the issue futher as more pixels are blended to get the final result.		This image was cherry‐picked to show the detrimental effects gamma‐ignorant resizers have on images with high contrast. It also has an extremely high‐res source (4800×2400), which compounds the issue futher as more pixels are blended to get the final result.
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	</div>		</div>
			</div>


	~~</div>~~
	== Implementation ==		== Implementation ==

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	This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.		This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

	You should have received a copy of the GNU General Public License along with this program. If not, see <[~~http://web.archive.org/web/20170614162225/http://~~www.gnu.org/licenses/ http://www.gnu.org/licenses/]>.		You should have received a copy of the GNU General Public License along with this program. If not, see <[www.gnu.org/licenses/ http://www.gnu.org/licenses/]>.

Reel.Deal: ResampleHQ: add documentation (html converted to mediawiki)

2020-05-24T15:52:15Z

ResampleHQ: add documentation (html converted to mediawiki)

Show changes

Raffriff42: added category

2015-11-08T04:30:35Z

added category

← Older revision		Revision as of 06:30, 8 November 2015
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	#REDIRECT [[External_filters#Resizers]]		#REDIRECT [[External_filters#Resizers]]
	{{~~FilterCat~~\|External_filters\|Adjustment_filters\|Resizers}}		{{FilterCat4\|External_filters\|Adjustment_filters\|Resizers\|Deep_color_tools}}

Raffriff42: redirect for convenient searching

2015-11-08T03:02:15Z

redirect for convenient searching

New page

#REDIRECT [[External_filters#Resizers]]
{{FilterCat|External_filters|Adjustment_filters|Resizers}}