Byte array to image in Android

Question

I have a linear byte array whose values I want to set as pixels of an image. The byte array length is 4800 and I want it to be displayed as a 80x60 image with pixel values set row-wise one after the other. I know that BitmapFactory helps to handle such tasks but how do I specify the height and width of the image?

"whose values I want to set as pixels of an image" So you have one pixel = 1 byte? What format is that? Grayscale? Palette? — leonbloy
– leonbloy, Commented Jan 30, 2013 at 21:12

Scott W · Accepted Answer · 2013-01-30 21:08:31Z

1

It sounds like what you've got is a byte array with the colors for the pixels in a Bitmap. If so, you will probably want to use the setPixels() method:

Bitmap bmp = Bitmap.createBitmap(80, 60, myConfig);

bmp.setPixels(myPixelData, 0, 80, 0, 0, 80, 60);

answered Jan 30, 2013 at 21:08

Scott W

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2 Comments

leonbloy Over a year ago

But this requires, not a array of bytes but an array of ints, each of which represents a packed color.

Scott W Over a year ago

ah, good point, I overlooked that, guess we need clarification from the OP

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