NTSC video: Revision history

6 April 2024

• curprev 07:5507:55, 6 April 2024‎ Fiskbit talk contribs‎ 30,545 bytes +32‎ Fixes "Understanding Analog Video Signals" tutorial link. (Maxim Integrated seems to now be at analog.com)

30 March 2024

• curprev 08:4708:47, 30 March 2024‎ Persune talk contribs‎ m 30,513 bytes −19‎ Emulating in C++ code: Declare InColorPhase() lambda before use

29 March 2024

• curprev 05:3805:38, 29 March 2024‎ Persune talk contribs‎ 30,532 bytes −123‎ Emulating in C++ code: change YIQ nomenclature to YUV; add 2x factor to QAM decoding
• curprev 05:2205:22, 29 March 2024‎ Persune talk contribs‎ m 30,655 bytes −36‎ Black/White level variables declared but not used in NTSCsignal()?

3 March 2024

• curprev 06:5006:50, 3 March 2024‎ Persune talk contribs‎ m 30,691 bytes +155‎ Fix IQ-UV matrix rotation and add citation

29 February 2024

• curprev 15:1015:10, 29 February 2024‎ Persune talk contribs‎ 30,536 bytes +2‎ Fix equation for G in YUV to RGB matrix
• curprev 05:5505:55, 29 February 2024‎ Persune talk contribs‎ 30,534 bytes +28‎ Fix all matrix equations of YUV using new reduction factors
• curprev 05:2405:24, 29 February 2024‎ Persune talk contribs‎ m 30,506 bytes +63‎ Fix link for SMPTE EG 27-2004
• curprev 05:1905:19, 29 February 2024‎ Persune talk contribs‎ m 30,443 bytes −54‎ Undo revision 21635 by Persune (talk) Tag: Undo
• curprev 05:1805:18, 29 February 2024‎ Persune talk contribs‎ m 30,497 bytes +54‎ Fix source for reference in composite decoding

28 February 2024

• curprev 04:3204:32, 28 February 2024‎ Persune talk contribs‎ m 30,443 bytes +6‎ Fix errors in C++ signal generation

10 February 2024

• curprev 23:1923:19, 10 February 2024‎ Persune talk contribs‎ m 30,437 bytes +12‎ Use more precise color-difference reduction factors

7 January 2024

• curprev 07:0307:03, 7 January 2024‎ Persune talk contribs‎ 30,425 bytes −1,179‎ Remove references to old voltage measurements

26 July 2023

• curprev 09:4809:48, 26 July 2023‎ Rainwarrior talk contribs‎ 31,604 bytes −42‎ →‎Emulating in C++ code: refer to first and second images rather than left and right (to cover case of wrap)
• curprev 08:2308:23, 26 July 2023‎ Rainwarrior talk contribs‎ 31,646 bytes +9‎ →‎Emulating in C++ code: use flexible rows instead of tables so a narrower browser is allowed to wrap these huge images instead of forced to make a horizontal scrolling view to accomodate

20 July 2023

• curprev 20:1320:13, 20 July 2023‎ NewRisingSun talk contribs‎ 31,637 bytes +53‎ Use a better explantion from PinoBatch

19 July 2023

• curprev 18:2018:20, 19 July 2023‎ Persune talk contribs‎ 31,584 bytes +194‎ Detail saturation loss compensation in composite video decoding

19 May 2023

• curprev 06:3206:32, 19 May 2023‎ Persune talk contribs‎ 31,390 bytes +712‎ Update composite decoding terminology; hint at colorimetry details

23 April 2023

• curprev 07:5307:53, 23 April 2023‎ Fiskbit talk contribs‎ m 30,678 bytes −2‎ Replaces 'colour' with 'color' for consistency and searchability.
• curprev 05:1905:19, 23 April 2023‎ Lidnariq talk contribs‎ 30,680 bytes +15‎ →‎Brightness Levels: shoulda previewed not just looked at changes
• curprev 05:0905:09, 23 April 2023‎ Lidnariq talk contribs‎ 30,665 bytes +326‎ →‎Brightness Levels: Link to PPU palette for cross-reference-ability. Don't compare to PAL here.
• curprev 05:0105:01, 23 April 2023‎ Lidnariq talk contribs‎ 30,339 bytes −33‎ Move clock out of introduction, where it's not yet relevant, and into first section where timing matters.
• curprev 04:5404:54, 23 April 2023‎ Lidnariq talk contribs‎ 30,372 bytes +10‎ →‎Color Tint Bits: Don't use register numbers
• curprev 04:5304:53, 23 April 2023‎ Lidnariq talk contribs‎ 30,362 bytes −193‎ →‎Color Phases: clarify what "row Y" means. Link to wikipedia for color -U. Delete incorrect commentary about PAL - it should be on that page anyway.
• curprev 04:4304:43, 23 April 2023‎ Lidnariq talk contribs‎ m 30,555 bytes −1‎ →‎Color Artifacts: typo

12 April 2023

• curprev 22:5022:50, 12 April 2023‎ Lidnariq talk contribs‎ 30,556 bytes −93‎ →‎Scanline Timing: use "backdrop" instead of the confusing "background color". But just to be careful, link to the glossary the first time we use the term
• curprev 07:0907:09, 12 April 2023‎ Persune talk contribs‎ 30,649 bytes +445‎ Cite timing sources
• curprev 04:5904:59, 12 April 2023‎ Persune talk contribs‎ 30,204 bytes +93‎ Indicate where VBlank is set and cleared
• curprev 04:3704:37, 12 April 2023‎ Persune talk contribs‎ m 30,111 bytes +516‎ Use colored squares instead of names

11 April 2023

• curprev 20:1920:19, 11 April 2023‎ Persune talk contribs‎ 29,595 bytes +1,139‎ Reposition start times of scanline timings, use more accurate terms for components of composite video

8 April 2023

• curprev 07:0707:07, 8 April 2023‎ Rainwarrior talk contribs‎ 28,456 bytes +190‎ →‎Color Artifacts: linking a good forum thread as reference
• curprev 06:4006:40, 8 April 2023‎ Rainwarrior talk contribs‎ 28,266 bytes +2,463‎ →‎Color Phases: describe the colour artifacts

1 April 2023

• curprev 01:0701:07, 1 April 2023‎ Rainwarrior talk contribs‎ 25,803 bytes −139‎ →‎Color Phases: "black strokes on a white background" effect seems to be disputed, moving it to talk temporarily
• curprev 00:2300:23, 1 April 2023‎ Rainwarrior talk contribs‎ 25,942 bytes +589‎ →‎Color Phases: reorder the description of differential phase distortion to try and put the output effects first, and the technical explanation later. also moving the forum thread link into a direct article reference, rather than being hidden in an edit comment.

31 March 2023

• curprev 02:4402:44, 31 March 2023‎ Tepples talk contribs‎ 25,353 bytes +612‎ →‎Color Phases: Differential phase distortion - see https://forums.nesdev.org/viewtopic.php?p=287241#p287241 for background

27 March 2023

• curprev 20:4920:49, 27 March 2023‎ Rainwarrior talk contribs‎ 24,741 bytes +61‎ →‎Color Tint Bits: add phase diagrams to the table, consistent use of term "active"
• curprev 20:4220:42, 27 March 2023‎ Rainwarrior talk contribs‎ 24,680 bytes +65‎ →‎Emulating in C++ code: explain that this is based on "old" measurements
• curprev 20:4120:41, 27 March 2023‎ Rainwarrior talk contribs‎ m 24,615 bytes −16‎ →‎Color Tint Bits: formatting
• curprev 20:4020:40, 27 March 2023‎ Rainwarrior talk contribs‎ 24,631 bytes +221‎ →‎Color Tint Bits: explain that the terminated measurement gives a factor of 0.81 on the absolute voltage, and the other figures are an approximation for the old measurement
• curprev 20:3420:34, 27 March 2023‎ Rainwarrior talk contribs‎ 24,410 bytes +199‎ →‎Brightness Levels: Moving "Initial Measurement" below the more recent "Terminated Measurement" and explaining that it's probably out of date and of unknown provenance
• curprev 05:1605:16, 27 March 2023‎ Rainwarrior talk contribs‎ m 24,211 bytes −10‎ →‎Libraries: protocol-relative forum links

26 March 2023

• curprev 22:2622:26, 26 March 2023‎ Rainwarrior talk contribs‎ 24,221 bytes +17‎ →‎Emulating in C++ code: fix broken link to Bisqwit's code example

12 March 2023

• curprev 18:5218:52, 12 March 2023‎ Lidnariq talk contribs‎ 24,204 bytes −40‎ →‎Scanline Timing: "NTSC alternates between 262/263 scanlines" is horrifically misleading: don't say that. Don't mention other 240p consoles, this is the NESdevwiki. Do mention that the NES produces a non-standard number of chroma periods per scanline.

9 March 2023

• curprev 08:2108:21, 9 March 2023‎ Persune talk contribs‎ m 24,244 bytes +2‎ Refer to both matrices instead of the original single matrix
• curprev 08:2008:20, 9 March 2023‎ Persune talk contribs‎ 24,242 bytes +280‎ Add YUV to linear RGB conversion matrix in terms of YUV only
• curprev 08:0708:07, 9 March 2023‎ Persune talk contribs‎ m 23,962 bytes 0‎ Correct swapped color reduction factors

8 March 2023

• curprev 18:3118:31, 8 March 2023‎ Persune talk contribs‎ 23,962 bytes +201‎ Clarify IQ to UV rotation matrix (thanks to NewRisingSun for clarifications)
• curprev 17:0617:06, 8 March 2023‎ Persune talk contribs‎ 23,761 bytes +964‎ Reword composite decoding summary (thanks to NewRisingSun for clarifications)
• curprev 10:2610:26, 8 March 2023‎ Persune talk contribs‎ m 22,797 bytes +107‎ Add link to FCC-sanctioned YIQ to RGB conversion base equations
• curprev 10:1910:19, 8 March 2023‎ Persune talk contribs‎ 22,690 bytes +3,241‎ Add section for composite video decoding