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Tag: image

Can’t create an image file in Java

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

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 ‘IllegalStateException’ error bg.width and bg.height are 806 and

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.NullPointerException: Attempt to invoke virtual method ‘void androidx.recyclerview.widget.RecyclerView.setAdapter(androidx.recyclerview.widget.RecyclerView$Adapter)’ on a null object reference at com.example.fortnitecompetitive.NewsActivity$1.onDataChange(NewsActivity.java:66) at com.google.firebase.database.core.ValueEventRegistration.fireEvent(ValueEventRegistration.java:75) at com.google.firebase.database.core.view.DataEvent.fire(DataEvent.java:63) at com.google.firebase.database.core.view.EventRaiser$1.run(EventRaiser.java:55) at android.os.Handler.handleCallback(Handler.java:907) at android.os.Handler.dispatchMessage(Handler.java:105) at android.os.Looper.loop(Looper.java:216)

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 code for convert jpg, png to wsq format: Hope help you

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 files where uploaded successful to the server from postman. This link is another post of a sample

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

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