User talk:Shlomital

Image:Castle master-cga.png

You uploaded a new version of Image:Castle master-cga.png. It is visually identical, but with a slightly larger file size. Your summary of the change was "fixed palette to unrounded 8-bit values, added sBIT chunk". I'm not familiar with the PNG specification, what does this mean in? Was the previous version not a strictly valid PNG? boffy_b 14:44, 18 July 2006 (UTC)

Indeed, it needs explanation, but I couldn't do the proper link to where it's all summarised. I wanted to link to Image:IBM16_Palette_Map.png (mine, on the Commons). The section "Orthopraxy" should make clear why I uploaded a new version. The changes are: values 54, A8 and FC for the colours are corrected to 55, AA and FF respectively, and an sBIT chunk is added to indicate that the original palette has a 2-bit range. The previous version was a strictly valid PNG (if it hadn't been, the browser couldn't have rendered it - the PNG standard, unlike TIFF, leaves little room for playing around with the internals). Finally, the difference is just a little over 60 bytes, which I think is in our day and age negligible. Sorry for my failure to provide the explanatory link. --Shlomi Tal ☜ 14:20, 19 July 2006 (UTC)

Additions in the List of palettes article

Hello, I did some improvements to the article List of palettes, that I think you will find fine, I hope. There are new hardware palettes for Amstrad CPC, MSX and MSX2, and the full combinations of the CGA palettes.

I was a professional videogames programmer and graphic designer in the last 80's and early 90's, and I have a lot of info and background on the matter. Some machines I worked with Sinclair ZX Spectrum, Amstrad CPC series, MSX, Commodore C-64, Atari ST, Commodore Amiga, and IBM PC with Hercules, CGA, EGA, VGA, SVGA (256 and 32768 colors) and AT&T Vista, among others. You can find my profile in internet.

Yours,Ricardo Cancho Niemietz 11:44, 27 February 2007 (UTC)

I haven't logged in for a long time, hence the delay of months in reading and replying. Thanks much, Ricardo. Your work on the List of palettes page is amazing! --Shlomi Tal ☜ 11:02, 9 May 2007 (UTC)

Most useful userpage ever. 68.39.174.238 18:13, 25 August 2007 (UTC)

Thank you. --Shlomi Tal ☜ 18:25, 25 August 2007 (UTC)

I would have to agree. If found this page quite useful when trying to figure out how to deal with zTXt in PNG images. The comment about tweakpng was extremely helpful! Jaryth000 12:20, 28 October 2007 (UTC)

Disputed fair use rationale for Image:Qb45.png

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Disputed fair use rationale for Image:Windows2000.png

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Disputed fair use rationale for Image:MSDOS Edit.png

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Orphaned non-free media (Image:Dogcow.png)

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Image copyright problem with Image:Am windows95 desktop.png

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Orphaned non-free media (Image:Adobepdfreader7 icon.png)

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Orphaned non-free media (Image:C64 Great Giana Sisters.png)

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Orphaned non-free media (Image:C64 Boulder Dash.png)

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Fair use rationale for File:Nt4server.png

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Your PETSCII screenshots need revision

I am on the verge of modifying & replacing the screenshots of the C-64 at startup, and which display the PETSCII values of a few of the bytes passed to the Commodore PRINT routine. You appear to be the author of those screenshots, and you appear to have used a C-64 emulator program to test your theory, and make the designs.

The point I wish to make, is simply that Commodore programmers usually achieved the lowercase/uppercase character mode by switching to "text" mode on first passing chr$(14) to the BASIC print routine, and then they arrived at the uppercase by passing bytes with bit 7 set, something that you may not have realized when you did your screenshots. It was highly unusual to OR a character in the range of $41 to $5A byte with $20, to reach the mirrored images at $61-7A.

In other words,

10 PRINT CHR$(14)  : REM FIRST SWITCH TO UPPERCASE/LOWERCASE TEXT MODE

20

30 FOR N=1 TO 26

40 PRINT CHR$(N OR 64 OR 128)  : REM PRINT UPPERCASE CHARACTERS

50 NEXT

60

70 END

is a better BASIC listing for testing and displaying your theory about PETSCII uppercase characters. Dexter Nextnumber (talk) 01:30, 31 October 2009 (UTC)

Fair use rationale for File:Dbaseshot.png

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What image compression program did you use for this image?

Hi, I'd just like to know what program you used to compress this picture: http://en.wikipedia.org/wiki/File:LossyDemonstration-98less.jpg Thanks. — Preceding unsigned comment added by 124.182.127.104 (talk) 19:03, 2 July 2011 (UTC)

File source problem with File:LossyDemonstration-Original.png

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Orphaned non-free media (File:Dogcow.png)

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File:Unicode Box Drawing (2500-257F) Rev 2.png missing description details

Dear uploader: The media file you uploaded as:

• File:Unicode Box Drawing (2500-257F) Rev 2.png

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ArbCom elections are now open!

Hi,
You appear to be eligible to vote in the current Arbitration Committee election. The Arbitration Committee is the panel of editors responsible for conducting the Wikipedia arbitration process. It has the authority to enact binding solutions for disputes between editors, primarily related to serious behavioural issues that the community has been unable to resolve. This includes the ability to impose site bans, topic bans, editing restrictions, and other measures needed to maintain our editing environment. The arbitration policy describes the Committee's roles and responsibilities in greater detail. If you wish to participate, you are welcome to review the candidates' statements and submit your choices on the voting page. For the Election committee, MediaWiki message delivery (talk) 12:52, 23 November 2015 (UTC)

An Arabic page on the commons?

Could you please tell me if this image is a publisher's logo? Am asking because I am categorizing Publisher logos on Mediawiki Commons. Thanks. — Ineuw talk