package com.basic.security.utils;
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import android.graphics.Bitmap;
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import java.nio.ByteBuffer;
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public class BgrUtils {
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ByteBuffer buffer;
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byte[] pixels;
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public byte[] getPixelsBGR(Bitmap image) {
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// calculate how many bytes our image consists of
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int bytes = image.getByteCount();
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if (buffer == null || buffer.array().length != bytes) {
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buffer = ByteBuffer.allocate(bytes); // Create a new buffer
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}
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buffer.clear();
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image.copyPixelsToBuffer(buffer); // Move the byte data to the buffer
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byte[] temp = buffer.array(); // Get the underlying array containing the data.
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if (pixels == null || pixels.length != (temp.length / 4) * 3) {
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pixels = new byte[(temp.length / 4) * 3]; // Allocate for BGR
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}
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// Copy pixels into place
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for (int i = 0; i < temp.length / 4; i++) {
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pixels[i * 3] = temp[i * 4 + 2]; //B
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pixels[i * 3 + 1] = temp[i * 4 + 1]; //G
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pixels[i * 3 + 2] = temp[i * 4]; //R
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}
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return pixels;
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}
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}
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