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A Java OCR SDK Library API allows you to perform OCR and bar code recognition on images (JPEG, PNG, TIFF, PDF, etc.) and output as plain text, xml with full coordinate, searchable PDF or editable RTF.
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/**********************************************************************************************
 *
 * Asprise OCR Java API
 * Copyright (C) 1998-2015. Asprise Inc. 
 *
 * This file is licensed under the GNU Affero General Public License version 3 as published by
 * the Free Software Foundation.
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the
 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * You should have received a copy of the GNU Affero General Public License.  If not, please
 * visit .
 *
 **********************************************************************************************/
package com.asprise.ocr.sample.util;

import javax.swing.border.Border;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsEnvironment;
import java.awt.Insets;
import java.awt.RenderingHints;
import java.awt.Transparency;
import java.awt.image.BufferedImage;



public class RoundedBorder implements Border {
    protected int cornerRadius;

    
    protected Color color;

    
    public RoundedBorder() {
        this(10, Color.lightGray);
    }

    
    public RoundedBorder(int cornerRadius, Color color) {
        this.cornerRadius = cornerRadius;
        setColor(color);
    }

    
    public void setColor(Color color) {
    	this.color = color;
    }

    
    public void setCornerRadius(int cornerRadius) {
    	this.cornerRadius = cornerRadius;
    }

    public int getCornerRadius() {
    	return cornerRadius;
    }

    public Insets getBorderInsets(Component c) {
        return getBorderInsets(c, new Insets(0,0,0,0));
    }

    public Insets getBorderInsets(Component c, Insets insets) {
        insets.top = insets.bottom = cornerRadius/2;
        insets.left = insets.right = 1;
        return insets;
    }

    public boolean isBorderOpaque() {
        return false;
    }

    public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
    	if(color == null) {
    		return;
    	}

        Graphics2D g2 = (Graphics2D)g.create();
        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                RenderingHints.VALUE_ANTIALIAS_ON);

        g2.setColor(deriveColorAlpha(color, 40));
        g2.drawRoundRect(x, y + 2, width - 1, height - 3, cornerRadius, cornerRadius);
        g2.setColor(deriveColorAlpha(color, 90));
        g2.drawRoundRect(x, y + 1, width - 1, height - 2, cornerRadius, cornerRadius);
        g2.setColor(deriveColorAlpha(color, 255));
        g2.drawRoundRect(x, y, width - 1, height - 1, cornerRadius, cornerRadius);

        g2.dispose();
    }



    public static BufferedImage createTranslucentImage(int width, int height) {

        return GraphicsEnvironment.getLocalGraphicsEnvironment().
                    getDefaultScreenDevice().getDefaultConfiguration().createCompatibleImage(width, height, Transparency.TRANSLUCENT);

    }

    public static Color deriveColorAlpha(Color base, int alpha) {
        return new Color(base.getRed(), base.getGreen(), base.getBlue(), alpha);
    }

    
    public static Color deriveColorHSB(Color base, float dH, float dS, float dB) {
        float hsb[] = Color.RGBtoHSB(
                base.getRed(), base.getGreen(), base.getBlue(), null);

        hsb[0] += dH;
        hsb[1] += dS;
        hsb[2] += dB;
        return Color.getHSBColor(
                hsb[0] < 0? 0 : (hsb[0] > 1? 1 : hsb[0]),
                hsb[1] < 0? 0 : (hsb[1] > 1? 1 : hsb[1]),
                hsb[2] < 0? 0 : (hsb[2] > 1? 1 : hsb[2]));

    }
}