Servler_Začátek

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package vyuka;

import java.awt.image.BufferedImage;
import java.io.*;
import java.util.*;
import javax.imageio.ImageIO;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.io.IOUtils;

import com.jhlabs.image.GammaFilter;
import com.jhlabs.image.GaussianFilter;

/**
 *
 * @author UserXP
 */
@WebServlet("/ServletObrazky")    // <--- toto se přidavalo
public class ServletObrazky extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request  servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException      if an I/O error occurs
     */
    private BufferedImage transformed;
    private InputStream original_input_stream;
    private String original_content_type;
    private BufferedImage original;