I’ve converted PNG to JPEG with both java and python PIL. Python code : For converting the Java code I used: below code shows me the exact value of each pixel: When I convert JPEG to PNG with both Python and JAVA the pixel values are exactly the same. But when its the other way around it seems like there
Tag: png
JavaFX – save canvas to png file
I’ve created a simple drawing program which just basically prints pictures on a canvas by choosing from 3 pictures and then the user can save the image that he created and open a previous image , the program works perfectly good , but I’m facing a problem : when I save the image , the image is not being saved
How to properly validate PNG header in java?
I’m trying to write a function which will check if PNG file is not corrupted. Here I found a function, also provided below, which stores file bytes into its own byte array. I know that the first eight bytes of a PNG file always contain the same decimal values 137 80 78 71 13 10 26 10 (hex: 89 50
LIBGdx – I get gray pixels in a sprite when saving as PNG
I’ve been trying to scale down a sprite and save it to the android local store for later use, but everything I’ve tried always results in a grey edge around the sprite. Sprites As you can see, the sprite batch blend function is set to GL20.GL_ONE, GL20.GL_ONE_MINUS_SRC_ALPHA and rendering to the screen look fine. It’s only when the PNG is
PNGj: Row writing order
The purpose is to draw a small image inside another image at some specified area. Is there any possibility to change only specified rows and avoid rewriting of entire lines of the origin image? I …
How to create 8-bit PNG from BufferedImage?
I have a Java program that creates composite png images that contain only black pixels and 100% transparent pixels. I am trying to reduce the size of these composites as much as possible and I notice that ImageIO.write always outputs 32 bit PNG’s. I would like to instead save them as 8-bit considering that the images will only have two