FeatureDetector | What features does your CPU and OS support | Monitoring library

I have in my application a time consuming task which takes some minutes to finish. The task is about image matching using ORB algorithm, an image query is compared with all images in gallery and then return similar images to listView, due to long time that the task takes, I prefer to add a progress Dialog with Asynctask. The problem is that when I press the search button the progress Dialog appears for long time and then the app crashes, so it seems that when the process is finished the app is crashed instead of hiding the progress dialog and showing results in listview.( knowing that the code works normally without progress Dialog and asynctask ). ALso i tried it using thread and same problem. Any help will be highly appreciated. Thanks in advance

Search Button Code:

I'm trying to develop an android app which should analyze the frames from camera and detect corners.

My aim is to detect the current chess board state and provide data to a server.

I've implemened OpenCV in my app and I'm trying to use FAST corner detection.

This is the part of my code where i analyze the current camera frame:

Using OpenCV 3.3.0

Using Visual Studio 2017, I try to run my code with no errors found. Always say "The application cound not start correctly (0xc000007b)"(Translated).

Already have this dll files in debug folder:

• opencv_contrib_world330d.dll
• opencv_ffmpeg.dll
• opencv_ffmpeg330.dll
• opencv_ffmpeg330_64.dll
• opencv_ffmpeg_64.dll
• opencv_img_hash330d.dll
• opencv_world330.dll
• opencv_world330d.dll

Here is my code:

I have downloaded a sample code of Java OpenCV. In few lines of the code there is FeatureDetectore() method that the compiler says it's deprecated.

I'm working on a project where I have to detect drilled holes on a surface. (the top two holes and there for orientation purposes only)

After detecting the holes the pattern will judge the placement of the holes and give results. I have created an overlay grid layout and placed it over the camera2api preview so the user can align the holes and scan (The real testing will not be of a picture from the LCD as shown in the screenshot)

Currently, I'm cropping the image based on the grid and resizing it to 1920x2560 to have a consistent frame for pattern judgement, which makes a single grid of roughly about 300px. I am unable to detect the blobs can someone suggest what sort of filtering I should choose for this work and if there is a better approach for doing this rather than using a grid layout as the placement of the holes in regard to the orientation holes matter for final results (both x and y axis)

Here is my code:

Spring Boot 1.5.11, Flyway 5.0.7 (also tried 5.1.1). The location specification is ignored. What am I missing here?

I'm using OpenCV to detect features and compute descriptors.

For feature detection I'm using FAST:

I am trying to take a picture from camera and do OCR on it by tesseract-ocr library. This is my full code:

Manifest:

I tried to find good matches using ORB.My code is as follows: