This is an automated email from the git hooks/post-receive script. pini pushed a commit to tag upstream/1.1.0_beta1 in repository sikuli.
commit bc1f9c0f5e4aa662a8e664b21411f866bd0ab096 Author: Raimund Hocke <[email protected]> Date: Wed Jan 29 20:31:18 2014 +0100 support function for Tesseract4Java (from Tess4J also) --- API/src/main/java/org/sikuli/script/Image.java | 42 +++++++++++++++++++++++++- 1 file changed, 41 insertions(+), 1 deletion(-) diff --git a/API/src/main/java/org/sikuli/script/Image.java b/API/src/main/java/org/sikuli/script/Image.java index ccd6826..44baa4e 100644 --- a/API/src/main/java/org/sikuli/script/Image.java +++ b/API/src/main/java/org/sikuli/script/Image.java @@ -21,6 +21,8 @@ import java.awt.image.SampleModel; import java.awt.image.WritableRaster; import java.io.File; import java.net.URL; +import java.nio.ByteBuffer; +import java.nio.ByteOrder; import java.util.ArrayList; import java.util.Collections; import java.util.HashMap; @@ -639,7 +641,7 @@ public class Image { } /** - * + * * @param factor * @return a new BufferedImage resized (width*factor, height*factor) */ @@ -914,4 +916,42 @@ public class Image { BufferedImage bm = new BufferedImage(cm, r, false, null); return bm; } + + // **************** for Tesseract4Java ******************** + /** + * Converts <code>BufferedImage</code> to <code>ByteBuffer</code>. + * + * @param bi Input image + * @return pixel data + */ + public static ByteBuffer convertImageData(BufferedImage bi) { + DataBuffer buff = bi.getRaster().getDataBuffer(); + // ClassCastException thrown if buff not instanceof DataBufferByte because raster data is not necessarily bytes. + // Convert the original buffered image to grayscale. + if (!(buff instanceof DataBufferByte)) { + bi = convertImageToGrayscale(bi); + buff = bi.getRaster().getDataBuffer(); + } + byte[] pixelData = ((DataBufferByte) buff).getData(); + // return ByteBuffer.wrap(pixelData); + ByteBuffer buf = ByteBuffer.allocateDirect(pixelData.length); + buf.order(ByteOrder.nativeOrder()); + buf.put(pixelData); + buf.flip(); + return buf; + } + + /** + * A simple method to convert an image to gray scale. + * + * @param image input image + * @return a monochrome image + */ + public static BufferedImage convertImageToGrayscale(BufferedImage image) { + BufferedImage tmp = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_BYTE_GRAY); + Graphics2D g2 = tmp.createGraphics(); + g2.drawImage(image, 0, 0, null); + g2.dispose(); + return tmp; + } } -- Alioth's /usr/local/bin/git-commit-notice on /srv/git.debian.org/git/pkg-java/sikuli.git _______________________________________________ pkg-java-commits mailing list [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-java-commits
