What I need to do is I have a input image file and I need to change it as user’s parameters. For example if user wants to make it %30 darker, first I get all pixels with their RGB values and store them in an 2D array. Sample array given below. After that I overwrite that RGB values (in our
Tag: image
Processing – Resize canvas based on jpg dimensions
I have a basic program where stock images form the background for a larger program – but a number of the images have slightly different sizes compared to each other. My initial code loads up the background image and tries to set the canvas size based on the image dimensions: I get ‘IllegalStateExc…
setTransform to rotate Images produces unexpected results
I looked everywhere to see with anyone had the same problem than me but it seems I’m the only one getting this error. So I’m in Java with Swing. I have a class Player that draws an image of the player. However, each time I tried to use setTransform to rotate my image, the second instance of player…
How to display ‘thinking’ image while Java method is running on Android app
I’m coding a tic tac toe app in which the user can play against the computer. In one of the difficulties, I’ve implemented an algorithm (minimax) to find the best move, and on the first move, the function which uses this algorithm to make the move seems to take a noticeable time to run. I want to …
RecyclerView on a null object reference
So I was trying to show images from firebase to recyclerview, but it threw me an error. Error says E/nitecompetitiv: [qarth_debug:] get PatchStore::createDisableExceptionQarthFile method fail. E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.fortnitecompetitive, PID: 15205 java.lang.NullPointerExc…
How can I convert fingerprint jpg to WSQ use JMRTD WSQEncoder.encode
I’m using JMRTD library (https://github.com/E3V3A/JMRTD/tree/master/wsq_imageio) to encode jpg to WSQ. I set Bitmap by manually instead of decode from WSQ file. Here is my original picture jpg: And below is my result WSQ file: How can I fix it. Many thanks! Answer I resolved this problem, here is my cod…
Sending Image files and Text from android app java HttpURLConnection multipart form-data
Hi I am trying to upload a file and a text, using multipart form-data HttpURLConnection java, sample of code below: additional details: I/File:: /storage/emulated/0/DCIM/100ANDRO/DSC_0117.JPG I/Api response: 400, Bad Request Note: I tested server from postman, and it working with no issues with Postman, the f…
Copying Image from URL to HTTP URL
Someone is providing a S3 Presigned URL so that I can upload my images to that link. All my images are on the website. Is there a way in JAVA to copy the image URL to the new URL provided ? I am trying to do this. Seems like an overkill Answer There would be no point converting to BufferedImage
Recyclerview is not dispaying the image
I am using this code to display a preset image in recyclerview, but for some reason it wont display. If anyone has any fixes I would be greatly indebted to them if they share it. My Main Activty: …
How can I resize a rectangular image to a square image while maintaining aspect ratio in Java?
I need to resize rectangular images (400×600) into square images (600×600) while keeping aspect ratio of the original image. The newly added pixels need to be transparent. Like this. I need it in java or kotlin code. But if that’s not possible then I don’t mind a solution in any other la…