Comments (4)
I noticed this! As a (temporary?) workaround, I'm currently converting my grayscale image to RGB before dithering it.
from hitherdither.
Ah, of course. That should work; feels somewhat dirty though.
A grayscale palette might be easy to create though, since a grayscale value x
maps to RGB tuple (x, x, x)
and then handling the ugly conversions behind the scenes...
from hitherdither.
I was working on a unrelated project. Honestly, I think converting to RGB
(or telling the user to do so) is probably the only way to go.
PIL will load images of any "mode" and modes return pixels in different forms. For example:
1
andL
return raw 8-bit ints.LA
returns a 2-tuple of 8-bit ints.RGB
,HSV
,LAB
, andYCbCr
return a 3-tuple of 8-byte ints, but the values all represent something different.RGBA
andCMYK
returns a 4-tuple of 8-bit ints, again with different meanings.F
returns a 32-bit floating point value.
I don't think it's the code's responsibility to handle the conversion for the user, but if the user passes an Image type not in RGB mode or sequences of non-3 length, an exception should probably be raised.
from hitherdither.
if image.mode !=' RGB':
image.convert('RGB')
It not very harsh with regards to responsibility.
from hitherdither.
Related Issues (9)
- Pillow no longer has a _makeself() method HOT 1
- Incorrect output HOT 2
- Creating palette on certain images throws ValueError: zero-size array to reduction operation minimum which has no identity
- Cluster dot dithering isn't included in the module HOT 1
- Problem installing hitherdither HOT 1
- Failed to install!!! HOT 2
- Source for Stevenson-Arce? HOT 3
- Upload Library to Pypi. HOT 4
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from hitherdither.