Java Code Examples for java.awt.image.BufferedImage#TYPE_BYTE_BINARY
The following examples show how to use
java.awt.image.BufferedImage#TYPE_BYTE_BINARY .
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Example 1
| Source File: RleEncodingTest.java From openjdk-jdk9 with GNU General Public License v2.0 | 6 votes |
|
private static void encodeRLE4Test() throws IOException {
// create 4bpp image
byte[] r = new byte[16];
r[0] = (byte)0xff;
byte[] g = new byte[16];
g[1] = (byte)0xff;
byte[] b = new byte[16];
b[2] = (byte)0xff;
IndexColorModel icm = new IndexColorModel(4, 16, r, g, b);
BufferedImage bimg = new BufferedImage(100, 100,
BufferedImage.TYPE_BYTE_BINARY,
icm);
Graphics gr = bimg.getGraphics();
gr.setColor(Color.green);
gr.fillRect(0, 0, 100, 100);
doTest(bimg, "BI_RLE4", ImageWriteParam.MODE_EXPLICIT);
}
Example 2
| Source File: ImageUtils.java From baidu-chain-dog with GNU General Public License v3.0 | 6 votes |
|
private List<BufferedImage> cfsToImage(List<SubImage> subImgList){
List<BufferedImage> bufferedImages = Lists.newArrayList();
for (SubImage subImage : subImgList) {
BufferedImage image = new BufferedImage(subImage.width, subImage.height, BufferedImage.TYPE_BYTE_BINARY);
for (int x = 0; x < subImage.width; x++) {
for (int y = 0; y < subImage.height; y++) {
image.setRGB(x, y, Color.WHITE.getRGB());
}
}
List<SubImage.Point> pixeList = subImage.getPixelList();
for (SubImage.Point point : pixeList) {
image.setRGB(point.x - subImage.left, point.y - subImage.top, Color.BLACK.getRGB());
}
// 将切割的中间图片加入到cfgList中
bufferedImages.add(image);
}
return bufferedImages;
}
Example 3
| Source File: BitDepth.java From jdk8u_jdk with GNU General Public License v2.0 | 5 votes |
|
private static boolean testPNGByteBinary() throws IOException {
int width = 10;
int height = 10;
File f = new File("BlackStripe.png");
BufferedImage bi = new BufferedImage(width, height,
BufferedImage.TYPE_BYTE_BINARY);
Graphics2D g = bi.createGraphics();
g.setColor(new Color(255, 255, 255));
g.fillRect(0, 0, width, height);
ImageIO.write(bi, "png", f);
BufferedImage bi2 = ImageIO.read(f);
if (bi2.getWidth() != width || bi2.getHeight() != height) {
System.out.println("Dimensions changed!");
return false;
}
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
int rgb = bi2.getRGB(x, y);
if (rgb != 0xffffffff) {
System.out.println("Found a non-white pixel!");
return false;
}
}
}
f.delete();
return true;
}
Example 4
| Source File: WBMPImageReader.java From openjdk-jdk8u with GNU General Public License v2.0 | 5 votes |
|
public Iterator getImageTypes(int imageIndex)
throws IOException {
checkIndex(imageIndex);
readHeader();
BufferedImage bi =
new BufferedImage(1, 1, BufferedImage.TYPE_BYTE_BINARY);
ArrayList list = new ArrayList(1);
list.add(new ImageTypeSpecifier(bi));
return list.iterator();
}
Example 5
| Source File: WBMPImageReader.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 5 votes |
|
public Iterator getImageTypes(int imageIndex)
throws IOException {
checkIndex(imageIndex);
readHeader();
BufferedImage bi =
new BufferedImage(1, 1, BufferedImage.TYPE_BYTE_BINARY);
ArrayList list = new ArrayList(1);
list.add(new ImageTypeSpecifier(bi));
return list.iterator();
}
Example 6
| Source File: ImageNew.java From openbd-core with GNU General Public License v3.0 | 5 votes |
|
/**
* This determines the image type
*
* @param namedStringParam
* @return
* @throws cfmRunTimeException
*/
private int getImageType(cfSession _session, String imageType) throws cfmRunTimeException {
imageType = imageType.toUpperCase().trim();
if (imageType.equals("3BYTE_BGR")) {
return BufferedImage.TYPE_3BYTE_BGR;
} else if (imageType.equals("4BYTE_ABGR")) {
return BufferedImage.TYPE_4BYTE_ABGR;
} else if (imageType.equals("4BYTE_ABGR_PRE")) {
return BufferedImage.TYPE_4BYTE_ABGR_PRE;
} else if (imageType.equals("BYTE_BINARY")) {
return BufferedImage.TYPE_BYTE_BINARY;
} else if (imageType.equals("BYTE_GRAY") || imageType.equals("GRAYSCALE")) {
return BufferedImage.TYPE_BYTE_GRAY;
} else if (imageType.equals("BYTE_INDEXED")) {
return BufferedImage.TYPE_BYTE_INDEXED;
} else if (imageType.equals("INT_ARGB") || imageType.equals("ARGB")) {
return BufferedImage.TYPE_INT_ARGB;
} else if (imageType.equals("INT_ARGB_PRE")) {
return BufferedImage.TYPE_INT_ARGB_PRE;
} else if (imageType.equals("INT_BGR")) {
return BufferedImage.TYPE_INT_BGR;
} else if (imageType.equals("INT_RGB") || imageType.equals("RGB")) {
return BufferedImage.TYPE_INT_RGB;
} else if (imageType.equals("USHORT_555_RGB")) {
return BufferedImage.TYPE_USHORT_555_RGB;
} else if (imageType.equals("USHORT_565_RGB")) {
return BufferedImage.TYPE_USHORT_565_RGB;
} else if (imageType.equals("USHORT_GRAY")) {
return BufferedImage.TYPE_USHORT_GRAY;
} else {
throwException(_session, "invalid type specified: " + imageType);
}
return 0;
}
Example 7
| Source File: BarcodeHelper.java From kfs with GNU Affero General Public License v3.0 | 5 votes |
|
private synchronized BufferedImage getBufferedBarcodeImage(String documentNumber, BarcodeGenerator bean){
try {
BitmapCanvasProvider canvas = new BitmapCanvasProvider(DPI, BufferedImage.TYPE_BYTE_BINARY,false ,0 );
bean.generateBarcode(canvas, documentNumber);
BufferedImage image=canvas.getBufferedImage();
canvas.finish();
return image;
}
catch(Exception e) {
e.printStackTrace();
}
return null;
}
Example 8
| Source File: TestCompressionBI_BITFIELDS.java From openjdk-jdk9 with GNU General Public License v2.0 | 5 votes |
|
public static void main(String[] args) throws IOException {
// buffered image types listed below can be saved as BI_BITFIELDS BMP
int[] types = {BufferedImage.TYPE_3BYTE_BGR,
BufferedImage.TYPE_USHORT_555_RGB,
BufferedImage.TYPE_USHORT_565_RGB,
BufferedImage.TYPE_BYTE_GRAY,
BufferedImage.TYPE_BYTE_BINARY,
BufferedImage.TYPE_BYTE_INDEXED,
BufferedImage.TYPE_INT_BGR,
BufferedImage.TYPE_INT_RGB};
for (int i = 0; i < types.length; i++) {
System.out.println("Test image " + types[i]);
TestCompressionBI_BITFIELDS t = new TestCompressionBI_BITFIELDS();
BufferedImage src =
t.createTestImage(types[i]);
System.out.println("Image for test: " + src);
System.out.println("SampleModel: " + src.getSampleModel());
BufferedImage dst = null;
try {
dst = t.writeAndRead(src);
} catch (IOException e) {
e.printStackTrace(System.out);
}
t.compareImages(src, dst);
}
}
Example 9
| Source File: BarcodeRasterizedImageProducer.java From jasperreports with GNU Lesser General Public License v3.0 | 5 votes |
|
@Override
public Renderable createImage(
JasperReportsContext jasperReportsContext,
JRComponentElement componentElement,
BarcodeGenerator barcode,
String message
)
{
try
{
ByteArrayOutputStream out = new ByteArrayOutputStream();
int resolution = JRPropertiesUtil.getInstance(jasperReportsContext).getIntegerProperty(
componentElement, PROPERTY_RESOLUTION, 300);
boolean gray = JRPropertiesUtil.getInstance(jasperReportsContext).getBooleanProperty(
componentElement, PROPERTY_GRAY, true);
boolean antiAlias = JRPropertiesUtil.getInstance(jasperReportsContext).getBooleanProperty(
componentElement, PROPERTY_ANTIALIAS, true);
int imageType = gray ? BufferedImage.TYPE_BYTE_GRAY
: BufferedImage.TYPE_BYTE_BINARY;
BitmapCanvasProvider provider =
new BitmapCanvasProvider(
out, "image/x-png", resolution, imageType, antiAlias,
((Barcode4jComponent)componentElement.getComponent()).getOrientationValue().getValue()
);
barcode.generateBarcode(provider, message);
provider.finish();
byte[] imageData = out.toByteArray();
return SimpleDataRenderer.getInstance(imageData);
}
catch (Exception e)
{
throw new JRRuntimeException(e);
}
}
Example 10
| Source File: WBMPImageReader.java From jdk8u-jdk with GNU General Public License v2.0 | 5 votes |
|
public Iterator getImageTypes(int imageIndex)
throws IOException {
checkIndex(imageIndex);
readHeader();
BufferedImage bi =
new BufferedImage(1, 1, BufferedImage.TYPE_BYTE_BINARY);
ArrayList list = new ArrayList(1);
list.add(new ImageTypeSpecifier(bi));
return list.iterator();
}
Example 11
| Source File: OutputImageTests.java From hottub with GNU General Public License v2.0 | 4 votes |
|
Context(TestEnvironment env, Result result, int testType) {
super(env, result);
String content = (String)env.getModifier(contentList);
if (content == null) {
content = CONTENT_BLANK;
}
// REMIND: add option for non-opaque images
image = createBufferedImage(size, size, content, false);
result.setUnits(size*size);
result.setUnitName("pixel");
if (testType == TEST_IMAGEIO || testType == TEST_IMAGEWRITER) {
ImageWriterSpi writerspi =
(ImageWriterSpi)env.getModifier(imageioWriteFormatList);
format = writerspi.getFileSuffixes()[0].toLowerCase();
if (testType == TEST_IMAGEWRITER) {
try {
writer = writerspi.createWriterInstance();
} catch (IOException e) {
System.err.println("error creating writer");
e.printStackTrace();
}
if (env.isEnabled(installListenerTog)) {
writer.addIIOWriteProgressListener(
new WriteProgressListener());
}
}
if (format.equals("wbmp")) {
// REMIND: this is a hack to create an image that the
// WBMPImageWriter can handle (a better approach
// would involve checking the ImageTypeSpecifier
// of the writer's default image param)
BufferedImage newimg =
new BufferedImage(size, size,
BufferedImage.TYPE_BYTE_BINARY);
Graphics g = newimg.createGraphics();
g.drawImage(image, 0, 0, null);
g.dispose();
image = newimg;
}
} else { // testType == TEST_JPEGCODEC
format = "jpeg";
}
initOutput();
}
Example 12
| Source File: InputImageTests.java From openjdk-8-source with GNU General Public License v2.0 | 4 votes |
|
Context(TestEnvironment env, Result result, int testType) {
super(env, result);
String content = (String)env.getModifier(contentList);
if (content == null) {
content = CONTENT_BLANK;
}
// REMIND: add option for non-opaque images
image = createBufferedImage(size, size, content, false);
result.setUnits(size*size);
result.setUnitName("pixel");
if (testType == TEST_IMAGEIO || testType == TEST_IMAGEREADER) {
ImageReaderSpi readerspi =
(ImageReaderSpi)env.getModifier(imageioReadFormatList);
format = readerspi.getFileSuffixes()[0].toLowerCase();
if (testType == TEST_IMAGEREADER) {
seekForwardOnly = env.isEnabled(seekForwardOnlyTog);
ignoreMetadata = env.isEnabled(ignoreMetadataTog);
try {
reader = readerspi.createReaderInstance();
} catch (IOException e) {
System.err.println("error creating reader");
e.printStackTrace();
}
if (env.isEnabled(installListenerTog)) {
reader.addIIOReadProgressListener(
new ReadProgressListener());
}
}
if (format.equals("wbmp")) {
// REMIND: this is a hack to create an image that the
// WBMPImageWriter can handle (a better approach
// would involve checking the ImageTypeSpecifier
// of the writer's default image param)
BufferedImage newimg =
new BufferedImage(size, size,
BufferedImage.TYPE_BYTE_BINARY);
Graphics g = newimg.createGraphics();
g.drawImage(image, 0, 0, null);
g.dispose();
image = newimg;
}
} else if (testType == TEST_TOOLKIT) {
format = (String)env.getModifier(toolkitReadFormatList);
} else { // testType == TEST_JPEGCODEC
format = "jpeg";
}
initInput();
}
Example 13
| Source File: InputImageTests.java From jdk8u-dev-jdk with GNU General Public License v2.0 | 4 votes |
|
Context(TestEnvironment env, Result result, int testType) {
super(env, result);
String content = (String)env.getModifier(contentList);
if (content == null) {
content = CONTENT_BLANK;
}
// REMIND: add option for non-opaque images
image = createBufferedImage(size, size, content, false);
result.setUnits(size*size);
result.setUnitName("pixel");
if (testType == TEST_IMAGEIO || testType == TEST_IMAGEREADER) {
ImageReaderSpi readerspi =
(ImageReaderSpi)env.getModifier(imageioReadFormatList);
format = readerspi.getFileSuffixes()[0].toLowerCase();
if (testType == TEST_IMAGEREADER) {
seekForwardOnly = env.isEnabled(seekForwardOnlyTog);
ignoreMetadata = env.isEnabled(ignoreMetadataTog);
try {
reader = readerspi.createReaderInstance();
} catch (IOException e) {
System.err.println("error creating reader");
e.printStackTrace();
}
if (env.isEnabled(installListenerTog)) {
reader.addIIOReadProgressListener(
new ReadProgressListener());
}
}
if (format.equals("wbmp")) {
// REMIND: this is a hack to create an image that the
// WBMPImageWriter can handle (a better approach
// would involve checking the ImageTypeSpecifier
// of the writer's default image param)
BufferedImage newimg =
new BufferedImage(size, size,
BufferedImage.TYPE_BYTE_BINARY);
Graphics g = newimg.createGraphics();
g.drawImage(image, 0, 0, null);
g.dispose();
image = newimg;
}
} else if (testType == TEST_TOOLKIT) {
format = (String)env.getModifier(toolkitReadFormatList);
} else { // testType == TEST_JPEGCODEC
format = "jpeg";
}
initInput();
}
Example 14
| Source File: PixelTests.java From openjdk-jdk9 with GNU General Public License v2.0 | 4 votes |
|
public static void init() {
pixelroot = new Group("pixel", "Pixel Access Benchmarks");
pixeloptroot = new Group(pixelroot, "opts", "Pixel Access Options");
doRenderTo = new Option.Toggle(pixeloptroot, "renderto",
"Render to Image before test",
Option.Toggle.Off);
doRenderFrom = new Option.Toggle(pixeloptroot, "renderfrom",
"Render from Image before test",
Option.Toggle.Off);
// BufferedImage Sources
bufimgsrcroot = new Group.EnableSet(pixelroot, "src",
"BufferedImage Sources");
new BufImg(BufferedImage.TYPE_BYTE_BINARY, 1);
new BufImg(BufferedImage.TYPE_BYTE_BINARY, 2);
new BufImg(BufferedImage.TYPE_BYTE_BINARY, 4);
new BufImg(BufferedImage.TYPE_BYTE_INDEXED);
new BufImg(BufferedImage.TYPE_BYTE_GRAY);
new BufImg(BufferedImage.TYPE_USHORT_555_RGB);
new BufImg(BufferedImage.TYPE_USHORT_565_RGB);
new BufImg(BufferedImage.TYPE_USHORT_GRAY);
new BufImg(BufferedImage.TYPE_3BYTE_BGR);
new BufImg(BufferedImage.TYPE_4BYTE_ABGR);
new BufImg(BufferedImage.TYPE_INT_RGB);
new BufImg(BufferedImage.TYPE_INT_BGR);
new BufImg(BufferedImage.TYPE_INT_ARGB);
// BufferedImage Tests
bufimgtestroot = new Group(pixelroot, "bimgtests",
"BufferedImage Tests");
new BufImgTest.GetRGB();
new BufImgTest.SetRGB();
// Raster Tests
rastertestroot = new Group(pixelroot, "rastests",
"Raster Tests");
new RasTest.GetDataElements();
new RasTest.SetDataElements();
new RasTest.GetPixel();
new RasTest.SetPixel();
// DataBuffer Tests
dbtestroot = new Group(pixelroot, "dbtests",
"DataBuffer Tests");
new DataBufTest.GetElem();
new DataBufTest.SetElem();
}
Example 15
| Source File: PixelTests.java From TencentKona-8 with GNU General Public License v2.0 | 4 votes |
|
public static void init() {
pixelroot = new Group("pixel", "Pixel Access Benchmarks");
pixeloptroot = new Group(pixelroot, "opts", "Pixel Access Options");
doRenderTo = new Option.Toggle(pixeloptroot, "renderto",
"Render to Image before test",
Option.Toggle.Off);
doRenderFrom = new Option.Toggle(pixeloptroot, "renderfrom",
"Render from Image before test",
Option.Toggle.Off);
// BufferedImage Sources
bufimgsrcroot = new Group.EnableSet(pixelroot, "src",
"BufferedImage Sources");
new BufImg(BufferedImage.TYPE_BYTE_BINARY, 1);
new BufImg(BufferedImage.TYPE_BYTE_BINARY, 2);
new BufImg(BufferedImage.TYPE_BYTE_BINARY, 4);
new BufImg(BufferedImage.TYPE_BYTE_INDEXED);
new BufImg(BufferedImage.TYPE_BYTE_GRAY);
new BufImg(BufferedImage.TYPE_USHORT_555_RGB);
new BufImg(BufferedImage.TYPE_USHORT_565_RGB);
new BufImg(BufferedImage.TYPE_USHORT_GRAY);
new BufImg(BufferedImage.TYPE_3BYTE_BGR);
new BufImg(BufferedImage.TYPE_4BYTE_ABGR);
new BufImg(BufferedImage.TYPE_INT_RGB);
new BufImg(BufferedImage.TYPE_INT_BGR);
new BufImg(BufferedImage.TYPE_INT_ARGB);
// BufferedImage Tests
bufimgtestroot = new Group(pixelroot, "bimgtests",
"BufferedImage Tests");
new BufImgTest.GetRGB();
new BufImgTest.SetRGB();
// Raster Tests
rastertestroot = new Group(pixelroot, "rastests",
"Raster Tests");
new RasTest.GetDataElements();
new RasTest.SetDataElements();
new RasTest.GetPixel();
new RasTest.SetPixel();
// DataBuffer Tests
dbtestroot = new Group(pixelroot, "dbtests",
"DataBuffer Tests");
new DataBufTest.GetElem();
new DataBufTest.SetElem();
}
Example 16
| Source File: PixelTests.java From dragonwell8_jdk with GNU General Public License v2.0 | 4 votes |
|
public static void init() {
pixelroot = new Group("pixel", "Pixel Access Benchmarks");
pixeloptroot = new Group(pixelroot, "opts", "Pixel Access Options");
doRenderTo = new Option.Toggle(pixeloptroot, "renderto",
"Render to Image before test",
Option.Toggle.Off);
doRenderFrom = new Option.Toggle(pixeloptroot, "renderfrom",
"Render from Image before test",
Option.Toggle.Off);
// BufferedImage Sources
bufimgsrcroot = new Group.EnableSet(pixelroot, "src",
"BufferedImage Sources");
new BufImg(BufferedImage.TYPE_BYTE_BINARY, 1);
new BufImg(BufferedImage.TYPE_BYTE_BINARY, 2);
new BufImg(BufferedImage.TYPE_BYTE_BINARY, 4);
new BufImg(BufferedImage.TYPE_BYTE_INDEXED);
new BufImg(BufferedImage.TYPE_BYTE_GRAY);
new BufImg(BufferedImage.TYPE_USHORT_555_RGB);
new BufImg(BufferedImage.TYPE_USHORT_565_RGB);
new BufImg(BufferedImage.TYPE_USHORT_GRAY);
new BufImg(BufferedImage.TYPE_3BYTE_BGR);
new BufImg(BufferedImage.TYPE_4BYTE_ABGR);
new BufImg(BufferedImage.TYPE_INT_RGB);
new BufImg(BufferedImage.TYPE_INT_BGR);
new BufImg(BufferedImage.TYPE_INT_ARGB);
// BufferedImage Tests
bufimgtestroot = new Group(pixelroot, "bimgtests",
"BufferedImage Tests");
new BufImgTest.GetRGB();
new BufImgTest.SetRGB();
// Raster Tests
rastertestroot = new Group(pixelroot, "rastests",
"Raster Tests");
new RasTest.GetDataElements();
new RasTest.SetDataElements();
new RasTest.GetPixel();
new RasTest.SetPixel();
// DataBuffer Tests
dbtestroot = new Group(pixelroot, "dbtests",
"DataBuffer Tests");
new DataBufTest.GetElem();
new DataBufTest.SetElem();
}
Example 17
| Source File: OutputImageTests.java From openjdk-jdk8u with GNU General Public License v2.0 | 4 votes |
|
Context(TestEnvironment env, Result result, int testType) {
super(env, result);
String content = (String)env.getModifier(contentList);
if (content == null) {
content = CONTENT_BLANK;
}
// REMIND: add option for non-opaque images
image = createBufferedImage(size, size, content, false);
result.setUnits(size*size);
result.setUnitName("pixel");
if (testType == TEST_IMAGEIO || testType == TEST_IMAGEWRITER) {
ImageWriterSpi writerspi =
(ImageWriterSpi)env.getModifier(imageioWriteFormatList);
format = writerspi.getFileSuffixes()[0].toLowerCase();
if (testType == TEST_IMAGEWRITER) {
try {
writer = writerspi.createWriterInstance();
} catch (IOException e) {
System.err.println("error creating writer");
e.printStackTrace();
}
if (env.isEnabled(installListenerTog)) {
writer.addIIOWriteProgressListener(
new WriteProgressListener());
}
}
if (format.equals("wbmp")) {
// REMIND: this is a hack to create an image that the
// WBMPImageWriter can handle (a better approach
// would involve checking the ImageTypeSpecifier
// of the writer's default image param)
BufferedImage newimg =
new BufferedImage(size, size,
BufferedImage.TYPE_BYTE_BINARY);
Graphics g = newimg.createGraphics();
g.drawImage(image, 0, 0, null);
g.dispose();
image = newimg;
}
} else { // testType == TEST_JPEGCODEC
format = "jpeg";
}
initOutput();
}
Example 18
| Source File: LosslessFactory.java From gcs with Mozilla Public License 2.0 | 4 votes |
|
/**
* Creates a new lossless encoded image XObject from a BufferedImage.
* <p>
* <u>New for advanced users from 2.0.12 on:</u><br>
* If you created your image with a non standard ICC colorspace, it will be
* preserved. (If you load images in java using ImageIO then no need to read
* this segment) However a new colorspace will be created for each image. So
* if you create a PDF with several such images, consider replacing the
* colorspace with a common object to save space. This is done with
* {@link PDImageXObject#getColorSpace()} and
* {@link PDImageXObject#setColorSpace(org.apache.pdfbox.pdmodel.graphics.color.PDColorSpace) PDImageXObject.setColorSpace()}
*
* @param document the document where the image will be created
* @param image the BufferedImage to embed
* @return a new image XObject
* @throws IOException if something goes wrong
*/
public static PDImageXObject createFromImage(PDDocument document, BufferedImage image)
throws IOException
{
if ((image.getType() == BufferedImage.TYPE_BYTE_GRAY && image.getColorModel().getPixelSize() <= 8)
|| (image.getType() == BufferedImage.TYPE_BYTE_BINARY && image.getColorModel().getPixelSize() == 1))
{
return createFromGrayImage(image, document);
}
else
{
// We try to encode the image with predictor
if (usePredictorEncoder)
{
PDImageXObject pdImageXObject = new PredictorEncoder(document, image).encode();
if (pdImageXObject != null)
{
if (pdImageXObject.getColorSpace() == PDDeviceRGB.INSTANCE &&
pdImageXObject.getBitsPerComponent() < 16 &&
image.getWidth() * image.getHeight() <= 50 * 50)
{
// also create classic compressed image, compare sizes
PDImageXObject pdImageXObjectClassic = createFromRGBImage(image, document);
if (pdImageXObjectClassic.getCOSObject().getLength() <
pdImageXObject.getCOSObject().getLength())
{
pdImageXObject.getCOSObject().close();
return pdImageXObjectClassic;
}
else
{
pdImageXObjectClassic.getCOSObject().close();
}
}
return pdImageXObject;
}
}
// Fallback: We export the image as 8-bit sRGB and might loose color information
return createFromRGBImage(image, document);
}
}
Example 19
| Source File: ShortPaletteTest.java From openjdk-jdk9 with GNU General Public License v2.0 | 4 votes |
|
private static BufferedImage createImage(int numberColors) {
return new BufferedImage(32,
32,
BufferedImage.TYPE_BYTE_BINARY,
createColorModel(numberColors));
}
Example 20
| Source File: OCRUtils.java From SuperBoot with MIT License | 4 votes |
|
/**
* @param sfile 需要去噪的图像
* @param destDir 去噪后的图像保存地址
* @throws IOException
*/
public void cleanImage(File sfile, String destDir)
throws IOException {
File destF = new File(destDir);
if (!destF.exists()) {
destF.mkdirs();
}
BufferedImage bufferedImage = ImageIO.read(sfile);
int h = bufferedImage.getHeight();
int w = bufferedImage.getWidth();
// 灰度化
int[][] gray = new int[w][h];
for (int x = 0; x < w; x++) {
for (int y = 0; y < h; y++) {
int argb = bufferedImage.getRGB(x, y);
// 图像加亮（调整亮度识别率非常高）
int r = (int) (((argb >> 16) & 0xFF) * 1.1 + 30);
int g = (int) (((argb >> 8) & 0xFF) * 1.1 + 30);
int b = (int) (((argb >> 0) & 0xFF) * 1.1 + 30);
if (r >= 255) {
r = 255;
}
if (g >= 255) {
g = 255;
}
if (b >= 255) {
b = 255;
}
gray[x][y] = (int) Math
.pow((Math.pow(r, 2.2) * 0.2973 + Math.pow(g, 2.2)
* 0.6274 + Math.pow(b, 2.2) * 0.0753), 1 / 2.2);
}
}
// 二值化
int threshold = ostu(gray, w, h);
BufferedImage binaryBufferedImage = new BufferedImage(w, h,
BufferedImage.TYPE_BYTE_BINARY);
for (int x = 0; x < w; x++) {
for (int y = 0; y < h; y++) {
if (gray[x][y] > threshold) {
gray[x][y] |= 0x00FFFF;
} else {
gray[x][y] &= 0xFF0000;
}
binaryBufferedImage.setRGB(x, y, gray[x][y]);
}
}
// 矩阵打印
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++) {
if (isBlack(binaryBufferedImage.getRGB(x, y))) {
System.out.print("*");
} else {
System.out.print(" ");
}
}
System.out.println();
}
ImageIO.write(binaryBufferedImage, "jpg", new File(destDir, sfile
.getName()));
}
