Talk:Color presets - Revision history

Raffriff42: Category:Talk

2015-12-14T01:02:36Z

Category:Talk

2014-08-22T06:32:55Z

2014-08-21T21:18:03Z

added reply

2014-08-19T17:57:55Z

2014-08-19T14:05:48Z

2014-08-19T14:04:51Z

2014-08-19T14:04:25Z

2014-08-19T13:31:42Z

reply and post source code

2014-08-18T22:19:49Z

Raffriff42 please read

2014-08-18T22:18:58Z

Raffriff42 please read

← Older revision		Revision as of 06:32, 22 August 2014
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	::::The hue and saturation values you give are a YCbCr concept while the color presets are given as RGB. I suggest you add the HSV and HSL values instead. That will be more useful to people. [[User:Admin\|Admin]] 23:18, 21 August 2014 (CEST)		::::The hue and saturation values you give are a YCbCr concept while the color presets are given as RGB. I suggest you add the HSV and HSL values instead. That will be more useful to people. [[User:Admin\|Admin]] 23:18, 21 August 2014 (CEST)
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		+	:::::I have made the requested changes. [[User:Raffriff42\|Raffriff42]] 08:32, 22 August 2014 (CEST)

← Older revision		Revision as of 21:18, 21 August 2014
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	:::Added a boxed note. What do you think? [[User:Raffriff42\|Raffriff42]] 19:57, 19 August 2014 (CEST)		:::Added a boxed note. What do you think? [[User:Raffriff42\|Raffriff42]] 19:57, 19 August 2014 (CEST)
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		+	::::The hue and saturation values you give are a YCbCr concept while the color presets are given as RGB. I suggest you add the HSV and HSL values instead. That will be more useful to people. [[User:Admin\|Admin]] 23:18, 21 August 2014 (CEST)

← Older revision		Revision as of 17:57, 19 August 2014
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	::The values you posted stand for hue, saturation and luma derived of the YCbCr colorspace (you should have converted to yv24 instead). I suggest you name it (HSL)_ycbcr or something like that. Since the colorpresets are given in rgb values it would make more sense to include (HSL)_rgb instead. [[User:Admin\|Admin]] 16:04, 19 August 2014 (CEST)		::The values you posted stand for hue, saturation and luma derived of the YCbCr colorspace (you should have converted to yv24 instead). I suggest you name it (HSL)_ycbcr or something like that. Since the colorpresets are given in rgb values it would make more sense to include (HSL)_rgb instead. [[User:Admin\|Admin]] 16:04, 19 August 2014 (CEST)
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		+	:::Added a boxed note. What do you think? [[User:Raffriff42\|Raffriff42]] 19:57, 19 August 2014 (CEST)

← Older revision		Revision as of 14:05, 19 August 2014
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	:My complete script is posted here: [https://dl.dropboxusercontent.com/u/108089426/Code/avisynth-Colors%7E2.avs] [[User:Raffriff42\|Raffriff42]] 15:31, 19 August 2014 (CEST)		:My complete script is posted here: [https://dl.dropboxusercontent.com/u/108089426/Code/avisynth-Colors%7E2.avs] [[User:Raffriff42\|Raffriff42]] 15:31, 19 August 2014 (CEST)

−	::The values you posted stand for hue, saturation and luma derived of the YCbCr colorspace. I suggest you name it (HSL)_ycbcr or something like that. Since the colorpresets are given in rgb values it would make more sense to include (HSL)_rgb instead. [[User:Admin\|Admin]] 16:04, 19 August 2014 (CEST)	+	::The values you posted stand for hue, saturation and luma derived of the YCbCr colorspace (you should have converted to yv24 instead). I suggest you name it (HSL)_ycbcr or something like that. Since the colorpresets are given in rgb values it would make more sense to include (HSL)_rgb instead. [[User:Admin\|Admin]] 16:04, 19 August 2014 (CEST)

← Older revision		Revision as of 14:04, 19 August 2014
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	:My complete script is posted here: [https://dl.dropboxusercontent.com/u/108089426/Code/avisynth-Colors%7E2.avs] [[User:Raffriff42\|Raffriff42]] 15:31, 19 August 2014 (CEST)		:My complete script is posted here: [https://dl.dropboxusercontent.com/u/108089426/Code/avisynth-Colors%7E2.avs] [[User:Raffriff42\|Raffriff42]] 15:31, 19 August 2014 (CEST)

−	::~~The values you posted have nothing to do with the color model HSL.~~ The values you posted stand for hue, saturation and luma derived of the YCbCr colorspace. I suggest you name it (HSL)_ycbcr or something like that. Since the colorpresets are given in rgb values it would make more sense to include (HSL)_rgb instead. [[User:Admin\|Admin]] 16:04, 19 August 2014 (CEST)	+	::The values you posted stand for hue, saturation and luma derived of the YCbCr colorspace. I suggest you name it (HSL)_ycbcr or something like that. Since the colorpresets are given in rgb values it would make more sense to include (HSL)_rgb instead. [[User:Admin\|Admin]] 16:04, 19 August 2014 (CEST)

← Older revision		Revision as of 14:04, 19 August 2014
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	:My complete script is posted here: [https://dl.dropboxusercontent.com/u/108089426/Code/avisynth-Colors%7E2.avs] [[User:Raffriff42\|Raffriff42]] 15:31, 19 August 2014 (CEST)		:My complete script is posted here: [https://dl.dropboxusercontent.com/u/108089426/Code/avisynth-Colors%7E2.avs] [[User:Raffriff42\|Raffriff42]] 15:31, 19 August 2014 (CEST)
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		+	::The values you posted have nothing to do with the color model HSL. The values you posted stand for hue, saturation and luma derived of the YCbCr colorspace. I suggest you name it (HSL)_ycbcr or something like that. Since the colorpresets are given in rgb values it would make more sense to include (HSL)_rgb instead. [[User:Admin\|Admin]] 16:04, 19 August 2014 (CEST)

← Older revision		Revision as of 13:31, 19 August 2014
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	Also you should add an appropriate reference for this. [[User:Admin\|Admin]] 00:18, 19 August 2014 (CEST)		Also you should add an appropriate reference for this. [[User:Admin\|Admin]] 00:18, 19 August 2014 (CEST)
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		+	:Sure thing, I created RGB '''BlankClip'''s with the values from '''colors_rgb.avsi''', converted to YV12 with matrix="PC.601", and calculated hue as
		+
		+	::[http://forum.doom9.org/showthread.php?p=1670625#post1670625 atan2](VPlaneMedian-128, UPlaneMedian-128)*180/PI + 360) % 360
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		+	:My complete script is posted here: [https://dl.dropboxusercontent.com/u/108089426/Code/avisynth-Colors%7E2.avs] [[User:Raffriff42\|Raffriff42]] 15:31, 19 August 2014 (CEST)

@@ Line 5: / Line 5: @@
 I suggest you use those. Example (color_blueviolet):
-R = 138
+R = 138 <br>
-G = 043
+G = 043 <br>
-B = 226
+B = 226 <br>
-M = max(R,G,B) = 226
+M = max(R,G,B) = 226 <br>
-m = min(R,G,B) = 43
+m = min(R,G,B) = 43 <br>
-C = M - m = 183
+C = M - m = 183 <br>
-B = M => H = 60*(4+(R-G)/C) = 60*(4+(138-43)/183) = 271.15
+B = M => H = 60*(4+(R-G)/C) = 60*(4+(138-43)/183) = 271.15 <br>
-L = (M+m)/2 = 134.5
+L = (M+m)/2 = 134.5 <br>
-S = C/(255-|2*L-255|) = 183/(255-|2*134.5-255|) = 0.76
+S = C/(255-|2*L-255|) = 183/(255-|2*134.5-255|) = 0.76 <br>
 Also you should add an appropriate reference for this. [[User:Admin|Admin]] 00:18, 19 August 2014 (CEST)

@@ Line 3: / Line 3: @@
 I don't know what formula's you used to calculated the HSL values but they seem to be wrong.
 [http://en.wikipedia.org/wiki/HSL_and_HSV Wikipedia] contains the formula's where 0<=H<360.0, 0<=S<=1 and 0<=L<=255.
-I suggest you use those. Example:
+I suggest you use those. Example (color_blueviolet):
 R = 138
@@ Line 14: / Line 14: @@
 L = (M+m)/2 = 134.5
 S = C/(255-|2*L-255|) = 183/(255-|2*134.5-255|) = 0.76