SuperScale2x - Algorithm Preview

[Sphax]

This algorythm don't work for all type of resizes. It only work for 2x, 4x and maybe 8x (if adapted).

The best algorythm is HQ2X : http://www.hiend3d.com/hq2x.html


original - neighbor resize - HQ2x

It could be better LIJI if you can use HQ2X algorythm instead of SuperScale2x

Demo :

Neighbor - scale2x (like superScale2x) - HQ2x

[Novabrain]

Wow, that does look much better, especially when you enlarge the pictures if you have old eyes

[James]

That looks brilliant, Sphax!

[LIJI]

HQ2x has its disadvantages.
The contrast is not variable and sometimes it will cause blurry images. (You can see one blurry part in the Yoshi picture, the shade of the ground)
Also HQ2x forces anti aliasing when sometimes it's un-needed and even disturbing.

P.s. SuperScale2x is my algorithm.
As shown in the first examples it's much better than the original algorithm and it also does the square example better (It won't mix the colors, as if someone wanted them to be mixed he would mix the from the first place in MMF2 applications!

[Sphax]

Maybe you can implement both with a property option ?

[LIJI]

I find it easier to write my own code than using existing code when it comes to C++.

[Random]

It'd really be nice to have both. SuperScale2x looks nice and I suppose it can be faster. But HQ2x looks much cleaner, and I actually like that it mixes the colors (*hint* option? *hint*).

[LIJI]

I will try to add *hint* mixing support to the algorithm, I'll see what I can do.
Edit: Implemented

[LIJI]

Example of the new Antialiasing Level 2 (Mix) mode:
Scale2x
SuperScale2x
SuperScale2x - Antialiasing Level 1
SuperScale2x - Antialiasing Level 2

Part of the above examples, scaled *4:
Scale2x

SuperScale2x

SuperScale2x - Antialiasing level 1

SuperScale2x - Antialiasing level 2


The Square example:


And the classic Yoshi example:

[Novabrain]

How will this be implemented? I mean, what are the plans for it? Will it be an extension like Image Manipulator?