dntks/easylut

Android library for applying color look-up table (CLUT) image transformations on bitmaps and imageviews

easylut's Issues

Getting java.lang.ArrayIndexOutOfBoundsException

Caused by: java.lang.ArrayIndexOutOfBoundsException: length=1048576; index=1060561 at hu.don.easylut.lutimage.LUTImage.getPixelByIndex(LUTImage.java:63) at hu.don.easylut.lutimage.LUTImage.getColorPixelOnLut(LUTImage.java:59) at hu.don.easylut.filter.CreatingNewBitmap.applyLut(CreatingNewBitmap.java:21) at hu.don.easylut.filter.LUTFilter.apply(LUTFilter.java:24)

//
i m using 512512 square image
/*/

License

Hi, could you please add licensing information to your project? I'd like to use it for a project of mine, but can't unless I know how you want to license your repository.

Getting array index out of bound exception while applying filter

Caused by: java.lang.ArrayIndexOutOfBoundsException: length=1048576; index=1118265
at hu.don.easylut.lutimage.LUTImage.getPixelByIndex(LUTImage.java:63)
at hu.don.easylut.lutimage.LUTImage.getColorPixelOnLut(LUTImage.java:59)
at hu.don.easylut.filter.CreatingNewBitmap.applyLut(CreatingNewBitmap.java:21)
at hu.don.easylut.filter.LUTFilter.apply(LUTFilter.java:24)

Opacity?

Can we set the opacity? I'm not sure from 3DLUT docs from android, but the ScriptIntrinsicLUT do have an alpha parameter...

Arrayindexoutofboundexception

crash with this filter?

Support Hald CLUTs

It would be nice if easyLUT supported Hald variant color lookup tables.

There's a nice description with some C source code on this website:
http://www.quelsolaar.com/technology/clut.html

The trouble is that the API will need to change, since Hald LUTs and regular LUTs are both square images; they only differ in grid sizes. Compare these two 512x512 images:

Conventional LUT:

Hald LUT:

Hald CLUT to shader

Hi, i want to apply hald clut on a video. But this lib is limited to images only. So, i want to write Hald 64x64x64 LUT into opengl shader but i am stuck in logic behind it. Can you please explain, how to read data from halt clut.