New online "retro" image tool

[Anima]

Hey guys,

here's another online image tool coded in Javascript for you to play around with: http://tool.anides.de/

Just use drag and drop or click on the background to load images. The tool also supports the IFF format (incomplete). The button "Save" will download the image as an IFF file to use it on the Atari ST or Amiga.

Please use a recent version of Firefox or Chrome.


Sascha

[Anima]

Coming soon for the Spectrum 512/4k image conversion: CRT emulation (based on the CRT scan line shaders by Timothy Lottes).

[calimero]

very coool tool! I play it for hours...

btw what is PCHG? is it PhotoChrome by Doug?
it would be cool to have HAM mode

[Anima]

very coool tool! I play it for hours...

btw what is PCHG? is it PhotoChrome by Doug?
it would be cool to have HAM mode

PCHG is a IFF extension which stands for a "Palette CHanGe" each line. It's quite comparable with the NEOchrome Master raster image format.

PhotoChrome will follow.

[calimero]

hm... I did not know even that 'NEOchrome Master raster image' have palette change each line!
Is it older or newer than Spectrum512 format?

[Anima]

hm... I did not know even that 'NEOchrome Master raster image' have palette change each line!
Is it older or newer than Spectrum512 format?

NEOchrome Master is an improved version of NEOchrome by Delta Force. It's definitely newer than Spectrum 512.

[NiceGuyUK]

Hi Anima,

Save seems broken on the NeoChrome Raster format for me right now. Error consoles as follows :-

Firefox
-------
TypeError: Canvas is undefined
SaveSpu()
main.js:3682
SaveImage()
main.js:3672
CreateImageWindow/<.Action()
main.js:2948

Chrome
------
main.js:3682 Uncaught TypeError: Cannot read property 'getContext' of undefinedSaveSpu @ main.js:3682
SaveImage @ main.js:3672
Action @ main.js:2948

[NiceGuyUK]

Also - can you re-implement the older version of the checks algorithm? It seemed more pleasing on the eye and "smoother" to me - for example :-



versus

[Anima]

Save seems broken on the NeoChrome Raster format for me right now.

Also - can you re-implement the older version of the checks algorithm?

Thanks for the report and sorry for the inconvenience. I actually did too many experiments and unfortunately the "working" version was overwritten with the test files. I'll have to take a look on that for sure.

However, I just was working on the Spectrum 512/4k converter part of the retro image tool today and the newest (but still beta) version can be tested here:

http://tool.anides.de/test/

A short Spectrum 512/4k slideshow program for the Atari ST(E) is also available here (just put the saved SPU files in the same folder and start the program):

http://tool.anides.de/test/slide.prg

[NiceGuyUK]

Thanks for the quick response - the test version definitely implements the Checks dither much better (very high seems the closest parallel to the original).

Anything that calls SaveSPU still not saving for me though, it still falls over at var Context = Canvas.getContext("2d"); with the error Uncaught TypeError: Cannot read property 'getContext' of undefined

I am still *very* appreciative of this excellent tool though, I use it a heck of a lot.

[Anima]

I just fixed some problems with the NEOchrome Master Raster format saving.

Some notable results (click on the pictures to download the IFF files and load them into NEOchrome Master):

[NiceGuyUK]

Awesome- look forward to trying it out over the weekend

[FedePede04]

i don't know what to say, other than Awesome

[frost]

Impressive !

[NiceGuyUK]

Simply amazing - I just need to write some code to display them on a real Atari outside of NeoChrome Master now - i.e., 68000 routine for loading and displaying an IFF file.

[xorcerer]

Thank you for a great work!

Do you have any links to data format descriptions that you have used (for the Neochrome Master format especially)? I'm looking at JavaScript source code and I'm analyzing the RAST and PCHG chunks (if I'm correct the PCHG is thankfully not compressed) but I'd love to see standard documentation. Because I'm planning to break those standards and create a software overscan viewer for Ataris.

Thank you for all help.

[czietz]

Do you have any links to data format descriptions that you have used (for the Neochrome Master format especially)?

Do you already know this: https://docs.dev-docs.org/htm/search.ph ... mats+revis? File format descriptions for a lot of file formats including samples to test your code.

[lp]

Originally documented in the Neochrome Master manual. See file neochrom.txt -> https://dhs.nu/files.php?t=single&ID=25

[xorcerer]

Wow!

Thank you many many times! The large repository is a true treasure trove (and I didn't know it), and thank you for pointing out the obvious first location that I didn't search - Neochrome Master archive. I am super time constrained so tomorrow is going to be the day my code must start working right off the bat.

Again - many thanks.