Nnedi3/nnedi3 rpow2 - Revision history

FranceBB: Added options to set AVX512 in the optimizations settings

2025-08-05T08:48:55Z

Added options to set AVX512 in the optimizations settings

2024-07-23T08:05:46Z

‎Syntax and Parameters

2024-07-23T08:05:37Z

‎Syntax and Parameters

2024-05-12T14:16:04Z

‎Syntax and Parameters

2014-10-12T10:33:49Z

‎Examples

2014-10-12T10:24:04Z

‎Examples

2014-09-21T17:59:05Z

minor update

2014-09-17T04:27:37Z

reformat

2014-08-23T16:17:31Z

2014-04-13T12:13:02Z

‎Description

@@ Line 107: / Line 107: @@
 ::::*6 = use FMA3
 ::::*7 = use FMA4
 <br>
 ::{{Par2|fapprox|int|15}}

@@ Line 51: / Line 51: @@
 :::Possible values are 1 or 2. When 1 is selected, a single network is gonna be used, while when 2 is selected, the results of two networks are blended together.
 :::In some cases, 2 can provide better results, however the difference is pretty small. The downside is that it can lead to hallucinations.
-::: The recommended setting is therefore to set {{Template:FuncDef|qual}} to 1 unless you know what you're doing.
+:::The recommended setting is therefore to set {{Template:FuncDef|qual}} to 1 unless you know what you're doing.
 <br>
 ::{{Par2|etype|int|0}}

@@ Line 47: / Line 47: @@
 ::{{Par2|qual|int|1}}
 :::Controls the number of different neural network predictions that are blended together to compute the final output value.
-:::Each neural network was trained on a different set of training data. Blending the results of these different networks improves generalization to unseen data.
+:::Each neural network was trained on a different set of training data. Blending the results of these different networks should in theory improve generalization to unseen data.
-:::Possible values are 1 or 2. Essentially this is a quality vs speed option. Larger values will result in more processing time, but should give better results.
+:::In practice, however, blending the results of two networks can lead to hallucinations and therefore introduce artifacts.
-:::However, the difference is usually pretty small. I would recommend using {{Template:FuncDef|qual}}>1 for things like single image enlargement.
+:::Possible values are 1 or 2. When 1 is selected, a single network is gonna be used, while when 2 is selected, the results of two networks are blended together.
 <br>
 ::{{Par2|etype|int|0}}

@@ Line 100: / Line 100: @@
 ::::*1 = use C
 ::::*2 = use [[SSE2]]
 <br>
 ::{{Par2|fapprox|int|15}}
@@ Line 111: / Line 116: @@
 ::::*&12 = 8|12 = use faster (and more inaccurate) exp function approximation in predictor nn
 <br>
 == Examples ==
 *Enlarge image by 4x with default settings (does not correct for center shift):

@@ Line 112: / Line 112: @@
 <br>
 == Examples ==
-*Enlarge image by 4x with default settings (identical to the 2nd example):
+*Enlarge image by 4x with default settings (does not correct for center shift):
   [[AviSource]]("Blah.avi")
-  nnedi3_rpow2(rfactor=4, nsize=0, nns=3, qual=1, etype=0, pscrn=2, threads=0, opt=0, fapprox=15)
+  nnedi3_rpow2(rfactor=4, nsize=0, nns=3, qual=1, etype=0, pscrn=2, threads=0, opt=0, fapprox=15)<br>
-<br>
+  # identical to:
-*Enlarge image by 4x but do not correct for center shift.
+  # nnedi3_rpow2(rfactor=4)
-  [[AviSource]]("Blah.avi")
   nnedi3_rpow2(rfactor=4)
 <br>
 *Enlarge image by 2x and correct for center shift using [[Resize#Spline_based_resizers|Spline36Resize]].

@@ Line 122: / Line 122: @@
 *Enlarge image by 2x and correct for center shift using [[Resize#Spline_based_resizers|Spline36Resize]].
   [[AviSource]]("Blah.avi")
-  nnedi3_rpow2(rfactor=2,cshift="Spline36Resize")
+  nnedi3_rpow2(rfactor=2,cshift="Spline36Resize")<br>
 <br>
 *Enlarge image by 8x, correct for center shift and downsample from 8x to 7x using [[Resize#LanczosResize|LanczosResize]] with 5 taps.
   [[AviSource]]("Blah.avi")
-  nnedi3_rpow2(rfactor=8,cshift="LanczosResize",fwidth=width*7,fheight=height*7,ep0=5)
+  nnedi3_rpow2(rfactor=8,cshift="LanczosResize",fwidth=Width()*7,fheight=Height()*7,ep0=5)<br>
 <br>
 --------------------------------------------------------
 '''Back to [[nnedi3#Filters|nnedi3]] &larr;'''

@@ Line 1: / Line 1: @@
-[[Category:Plugin_Filters]]
+{{FilterCat4|External_filters|Plugin_functions|Adjustment_filters|Resizers}}
-[[Category:Resizers]]
 '''Back to [[nnedi3#Filters|nnedi3]] &larr;'''
 --------------------------------------------------
@@ Line 6: / Line 5: @@
 == Description ==
 nnedi3_rpow2 is for enlarging images by powers of 2.<br>
 <br>
 == [[Script variables|Syntax and Parameters]] ==

@@ Line 4: / Line 4: @@
 <br>
 == Description ==
-:nnedi3 is an intra-field only deinterlacer. It takes in a frame, throws away one field, and then interpolates the missing pixels using only information from the kept field. It has same rate and double rate modes, and works with YV12, YUY2, and RGB24 input.
+:nnedi3_rpow2 is for enlarging images by powers of 2.
 <br>
 == [[Script variables|Syntax and Parameters]] ==
 :{{Template:FuncDef|nnedi3_rpow2 (''clip'', ''int'' rfactor, ''int'' "nsize", ''int'' "nns", ''int'' "qual", ''int'' "etype", ''int'' "pscrn", ''string'' "cshift", ''int'' "fwidth", ''int'' "fheight", ''float'' "ep0", ''float'' "ep1",  ''int'' "threads", ''int'' "opt", ''int'' "fapprox")}}