本文整理汇总了Java中javax.imageio.stream.ImageInputStream.readBits方法的典型用法代码示例。如果您正苦于以下问题：Java ImageInputStream.readBits方法的具体用法？Java ImageInputStream.readBits怎么用？Java ImageInputStream.readBits使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类javax.imageio.stream.ImageInputStream的用法示例。
在下文中一共展示了ImageInputStream.readBits方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: reformatDiscontiguousData
import javax.imageio.stream.ImageInputStream; //导入方法依赖的package包/类
/**
* Reformats bit-discontiguous data into the {@code DataBuffer}
* of the supplied {@code WritableRaster}.
*/
private static void reformatDiscontiguousData(byte[] buf,
int[] bitsPerSample,
int stride,
int w,
int h,
WritableRaster raster)
throws IOException {
// Get SampleModel info.
SampleModel sm = raster.getSampleModel();
int numBands = sm.getNumBands();
// Initialize input stream.
ByteArrayInputStream is = new ByteArrayInputStream(buf);
ImageInputStream iis = new MemoryCacheImageInputStream(is);
// Reformat.
long iisPosition = 0L;
int y = raster.getMinY();
for(int j = 0; j < h; j++, y++) {
iis.seek(iisPosition);
int x = raster.getMinX();
for(int i = 0; i < w; i++, x++) {
for(int b = 0; b < numBands; b++) {
long bits = iis.readBits(bitsPerSample[b]);
raster.setSample(x, y, b, (int)bits);
}
}
iisPosition += stride;
}
}
示例2: main
import javax.imageio.stream.ImageInputStream; //导入方法依赖的package包/类
public static void main(String[] args) throws IOException {
byte[] buffer = new byte[] {(byte)169, (byte)85}; // 10101001 01010101
InputStream ins = new ByteArrayInputStream(buffer);
ImageInputStream in = new FileCacheImageInputStream(ins,null);
if (in.getBitOffset() != 0) {
throw new RuntimeException("Initial bit offset != 0!");
}
int bit0 = in.readBit(); // 1
if (bit0 != 1) {
throw new RuntimeException("First bit != 1");
}
if (in.getBitOffset() != 1) {
throw new RuntimeException("Second bit offset != 1");
}
long bits1 = in.readBits(5); // 01010 = 10
if (bits1 != 10) {
throw new RuntimeException("Bits 1-5 != 10 (= " + bits1 + ")");
}
if (in.getBitOffset() != 6) {
throw new RuntimeException("Third bit offset != 6");
}
int bit1 = in.readBit(); // 0
if (bit1 != 0) {
throw new RuntimeException("Bit 6 != 0");
}
if (in.getBitOffset() != 7) {
throw new RuntimeException("Third bit offset != 7");
}
long bits2 = in.readBits(8); // 10101010 = 170
if (bits2 != 170) {
throw new RuntimeException("Bits 7-14 != 170 (= " + bits2 + ")");
}
if (in.getBitOffset() != 7) {
throw new RuntimeException("Fourth bit offset != 7");
}
int bit2 = in.readBit(); // 1
if (bit2 != 1) {
throw new RuntimeException("Bit 15 != 1");
}
if (in.getBitOffset() != 0) {
throw new RuntimeException("Fifth bit offset != 0");
}
in.close();
}