Android Palette: Why not working with this particular image?

Question

I am currently working with the Palette API from support library (https://developer.android.com/tools/support-library/features.html#v7-palette)

The code below works fine with hundreds of pictures, no problem at all. I set the text and background color depending on the palette results. The result is awesome and really nice looking (if you want to re-use it in your application, do not hesitate!).

Unfortunately, in hundreds of pictures, only one is not working and gives weird results. This is this one => http://www.cineswellington.com/images/film/140929075044.jpg

As the Palette has no documentation or debug mode, I really wonder what could happen, and if there is a way to understand if there is a flaw in the original picture or whatever.

Picasso.with(getActivity()).load("http://www.cineswellington.com/images/film/140929075044.jpg").into(t);

private Target t = new Target() {
    @Override
    public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
        Palette.generateAsync(bitmap, new Palette.PaletteAsyncListener() {
            public void onGenerated(Palette palette) {
                ((ImageView) v.findViewById(R.id.iv)).setImageDrawable(new BitmapDrawable(bitmap));
                //At this point, the ImageView is correctly filled, so the bitmap object has no issue.
                int textColor = palette.getLightMutedColor(android.R.color.darker_gray);
                int bgColor = palette.getDarkMutedColor(android.R.color.white);
                Log.d("CVE","textColorInt: "+ textColor);
                Log.d("CVE","bgColorInt: "+bgColor);
                Log.d("CVE","textColorHexa: "+String.format("#%06X", 0xFFFFFF & textColor));
                Log.d("CVE","bgColorHexa: "+String.format("#%06X", 0xFFFFFF & bgColor));
            }
        });


    }
};

And this is the output:

textColorInt: 17170432
bgColorInt: 17170443
textColorHexa: #060000
bgColorHexa: #06000B

If someone could help me to reproduce the bug or tell me that it's only happening on my side, this would be awesome

Answer 1

The image seems to consist of vibrant colors only, so it'd be hard to create a muted color palette that would fit it. It's not surprising the algorithm fails to do so.

Try using the getVibrantColor() functions if muted dark/light are too much alike.