Problem with gif with transparent background

0 votes

I have a difficulty and error in displaying the gif with a transparent background every time I start this program. Even though my gif shows but regardless, all the images of the gif stayed on the canvas. Could anyone please help me with providing a solution?

This is the code I have used:
 

package zkouska3; 

import java.awt.Graphics;
import java.awt.Image; 
import java.awt.image.BufferedImage; 
import java.io.IOException;
import java.net.URL;

import javax.swing.ImageIcon;
import javax.swing.JFrame; 

public class mainl extends JFrame{ 
        private Image TestImage; 
        private BufferedImage bf; 
        public static void main(String[] args) { new mainl(); 
} public mainl() { 
setSize(500, 500); 

imageLoader(); 
setVisible(true); 
} 
    public void imageLoader() { 
    try { 
    TestImage = new         ImageIcon(this.getClass().getResource("pandulak.gif")).getImage();  
}catch(Exception e) { 
}
}
@Override   
  public void paint(Graphics g){ 
  g.drawImage(TestImage, 0, 0, 300, 300, this); 
}
}
Feb 8 in Java by Soham
• 9,670 points
193 views

1 answer to this question.

0 votes

In this case, I have noticed that your gif is located in disposal = 3 which states that it requires the previous image because it renders incrementally. The error and issue I am facing is that the gif is completely black and not white.
 

Here are the possiblilities:

        

if (disposal==0) s="no animation"; 
else if (disposal==1) s="leave image as is"; 
else if (disposal==2) s="clear with background"; 
else if (disposal==3) s="restore previous image"; 
else s="reserved";

While rendering this with my decoder,  it looks like the following shown below:

[![capture][1]][1]

Which ensures that there are two possibilities at this situation as such. One could be a transparent image with a background but still, even an average image viewer would display the same and hence, this might not be the case overall. These days, the browsers of the WEB rely on undocumented custom made extensions added to GIFs extension packets which ignores the GIF File Format for various aspects of rendering. All these use the same image LIB for decoding the GIFs with the presence of bad design/code. I presume that your GIF has an extension packet which commands the browser to use different disposal methods than the one which is present in the GIF header. This makes the GIF a buggy GIF and only a decoder of a buggy GIF can render it. The white lines have gaps between them and are not an aliasing bit. Also an incremental render will not work with a non black colour background and hence, the decoder must ignore the GIF background colour.

answered Feb 8 by Rahul
• 9,680 points

Related Questions In Java

0 votes
0 answers

Can you control GIF animation with Javascript?

Is it feasible to use Javascript to ...READ MORE

Nov 16 in Java by Nicholas
• 7,120 points
57 views
0 votes
1 answer

How can I create an executable JAR with dependencies using Maven?

<build> <plugins> <plugin> ...READ MORE

answered Apr 26, 2018 in Java by sophia
• 1,400 points
768 views
0 votes
2 answers

I'm getting following error, while i'm running code in windows xp service pack 3 with JDK 6 version.

Till you send the code, I would ...READ MORE

answered May 16, 2018 in Java by Meci Matt
• 9,460 points
1,655 views
0 votes
1 answer

Replacing a String with a character

Yes, you are missing out on a ...READ MORE

answered May 17, 2018 in Java by geek.erkami
• 2,680 points
191 views
0 votes
1 answer

Describe Heavy Weight Components Mean In Java Programming?

Heavy weight components like Abstract Window Toolkit ...READ MORE

answered Nov 28, 2018 in Java by Frankie
• 9,830 points
913 views
+5 votes
4 answers

How to execute a python file with few arguments in java?

You can use Java Runtime.exec() to run python script, ...READ MORE

answered Mar 27, 2018 in Java by DragonLord999
• 8,450 points

edited Nov 7, 2018 by Omkar 67,299 views
+1 vote
1 answer

How to handle drop downs using Selenium WebDriver in Java

First, find an XPath which will return ...READ MORE

answered Mar 27, 2018 in Selenium by nsv999
• 5,500 points
6,999 views
0 votes
1 answer

What are the differences between getText() and getAttribute() functions in Selenium WebDriver?

See, both are used to retrieve something ...READ MORE

answered Apr 5, 2018 in Selenium by nsv999
• 5,500 points
15,023 views
0 votes
1 answer

Failed to load resource: the server responded with a status of 404 (not found)

In order to avoid an error while ...READ MORE

answered Feb 8 in Java by Rahul
• 9,680 points
695 views
0 votes
1 answer

Angular: conditional class with *ngClass

For your information, the latest Angular version ...READ MORE

answered Feb 9 in Java by Rahul
• 9,680 points
301 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP