Apple-2-SW
/
ii-pix
mirror of https://github.com/KrisKennaway/ii-pix.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

More fixes

This commit is contained in:
kris 2021-03-15 13:41:01 +00:00
parent aa802b93d4
commit 85ad76a251
2 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
README.md
View File

@ -248,10 +248,10 @@ For a 4-bit colour palette the file is 256MB; for the 8-bit NTSC colour palette
![Detail of a2bestpix preview image](docs/a2bestbix-preview-crop.png)
![Detail of openemulator render](docs/a2bestpix-openemulator-crop.png)
* Other discrepancies are also visible when comparing these two images. This means that (like bmp2dhr) the generated "preview" image may not closely match the native image, and the dithering algorithm is also optimizing over a slightly incorrect set of colour sequences, which presumably impacts image quality. Possibly these are transcription errors, or artifacts of the particular emulator (AppleWin) from which they were reconstructed.
* See below for another example where the output has major image discrepancies with the original - perhaps also due to bugs/omissions in the table of colour blocks.
* This means that (like bmp2dhr) the generated "preview" image may not closely match the native image, and the dithering algorithm is also optimizing over a slightly incorrect set of colour sequences, which presumably impacts image quality. Possibly these are transcription errors, or artifacts of the particular emulator (AppleWin) from which they were reconstructed.
## Image comparisons
These three images were converted using the same target (openemulator) palette, using ][-pix, bmp2dhr and a2bestpix (since this is supported by all three), and are shown as screenshots from openemulator.
@ -261,7 +261,7 @@ These three images were converted using the same target (openemulator) palette,
(Source: [Purple Sherbet Photography from Worldwide!](https://commons.wikimedia.org/wiki/File:Colourful_assortment_of_paper_clips_(10421946796).jpg), [CC BY 2.0](https://creativecommons.org/licenses/by/2.0), via Wikimedia Commons)
The following images were generated with a palette approximating OpenEmulator's colours (`--palette=openemulator` for ][-pix)
The following images were all generated with a palette approximating OpenEmulator's colours (`--palette=openemulator` for ][-pix)
### ][-pix 4-pixel colour

BIN
examples/groundhog-iipix-virtualii.png Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 579 KiB