ObjectDetection | Object detection example using CNTK and Python | Computer Vision library
kandi X-RAY | ObjectDetection Summary
kandi X-RAY | ObjectDetection Summary
This example is modified version of predefined CNTK Example of Image detection which can be found at
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Top functions reviewed by kandi - BETA
- Forward the given bottom box
- Compute the targets according to the given criteria
- Unmap data
- Forward a prediction
- Wrapper for nms
- Filter boxes based on given size
- Forward computation
- Sample foreground rois
- Get the labels for the bounding box
- Compute proposals
- Plot test set results
- Measure inference time
- Set up the layers
- Generate anchors
- Create a dict of class dict
- Evaluates a single image
- Create map files
- Helper function to filter results
- Train an object detector
- Compute reprojection positions
- Compute test set
- Stores the evaluation model with the given uuid
- Get configuration
- Read image file
- Generate a list of anchors
- Download a model by name
- Set up the layer
- Resize image to specified max dimension
ObjectDetection Key Features
ObjectDetection Examples and Code Snippets
Community Discussions
Trending Discussions on ObjectDetection
QUESTION
I'm writing an image detection bot and as per the advice from a few members, I refactored some code and separated this section into its own function objectDetection
I'm trying to do two things with the array image_list
- Iterate through the array and if any image is detected I want to immediately print "Avoided" to the terminal and restart the
objectDetection
function from the beginning of the array.
I've tried to do this with the flag variable found_anything = True
and break
it hasn't worked.
- Iterate through the full array of images and if nothing at all is found, execute
functionTwo()
I tried to do this with the break
at the end of my for i in image_list:
loop, it also hasn't worked.
So far I've tried....
Reading through these three pages: Break out of two loops and two if statements - Python break out of two loops without disturbing the if statements after it in python Accessing the index in 'for' loops? and I tried both the variable flags and break statements but I can't get either to work.
I also had a look at this: How to break out of multiple loops? but what is the difference between return and break in python? made me think in my case the top answer wouldn't be appropriate as I don't think I'm returning data outside of my function.
Is there a way I can adapt this code to achieve my two uses cases above? Am I missing something obvious? I've been thought all the loop tutorials I can find and I'm still struggling, is this simply a difficult way I'm trying to design things? Or am I simply not getting it and should go back over some tutorials.
...ANSWER
Answered 2022-Feb-10 at 10:49I'd refactor the whole thing but something like this answers the main question: Refactor your functions such that you can use 'Return' instead of 'Break'
QUESTION
I'm learning image detection and python writing a bot for a 2d game. There are certain targets we want to attack and certain targets we want to avoid. One target is displayed on the screen at a time out of a pool of 100 and you click next or attack depending on what you want to do. In doing this you're able to cycle through targets until you find one you want to attack. My code currently checks to see if it finds one of 24 different targets we want to avoid, if it does it avoids that target. Otherwise, it attacks that target.
At the moment my code:
...ANSWER
Answered 2022-Feb-08 at 13:17You can simply stop the inner loop with the python word break inside your condition, so it will stop whenever it is True. This break will not affect the outer loop. For more info about stopping nested loops I would recommend you this article: 5 Ways To Break Out of Nested Loops in Python
QUESTION
I'm learning OpenCV & Python by writing a bot for a 2d spaceship game.
The basic principle is there are certain targets my spaceship can defeat and certain spaceships it cannot defeat. One target is displayed on the screen at a time and you click either next
or attack
depending on what you want to do. In doing this you're able to cycle through targets until you find one you want to attack.
At the moment my code:
- Loads images of ships it cannot defeat into an numpy array
- Some pyautigui interactions to skip through menus
- Checks the numpy array to determine if it wants to attack or skip the target it's been given
- Clicks attack or skip with pyautogui
This all works correctly and the bot happily searches away and either clicks skip or attack.
My issue:
The names of the images being loaded are human-readable e.g. Ship 1.jpg, Ship 2.jpg, Ship 3.jpg
When I load them into the numpy array they lose their human-readable component.
My Question:
I want to be able to log what was attacked to refine the detection, at the moment I'm able to output the actual array array([[106, 106, 106, ..., 42, 41, 42],
but I can't seem to figure out how to keep the human-readable element. How can I keep the human-readable element?
I'm loading the images like this:
...ANSWER
Answered 2022-Feb-07 at 15:46You can append tuples to your list. Where the first element is the name and the second is the image.
QUESTION
I'm using PILs ImageGrab
function to capture an application window in real-time for image detection with OpenCV. I've managed to scale the captured window down to increase the speed of image detection. However, I'm getting a number of false positives I can't seem to avoid. I actually only need to capture a small section of the window 761 34 1142 68
ANSWER
Answered 2022-Feb-08 at 11:53Not sure why, but loading the cropped image into a variable and using that variable worked.
QUESTION
I am new to ML and am trying to make inferences using the YoloV5 model from a C# program. I am aware of the github port, but would like to use torch instead of ML.NET. I found PythonNET nuget package, and this code is working:
...ANSWER
Answered 2021-Oct-13 at 01:33Posting this as an answer for anyone else that is seeking a good way to use YOLOv5 in C#, that doesn't require dealing with python, since it is using ML.Net:
github.com/mentalstack/yolov5-net
QUESTION
I am currently using android-demo-app/ObjectDetection/ On Temi Robot, the preloaded images are working so far but when I press "live" to go to live object detection screen, it is rotated 90 degrees to the right.
Temi robot only have a front facing camera on the same side of the screen.
I have tried changing textureView.setTransform()
imageAnalysisConfig.Builder().setTargetRotation()
imageAnalysis.setTargetRotation()
but to no avail
Also tried changing AndroidManifest.xml
screenOrientation
under activity
tag to fullSenor
or Landscape
but nothing changed.
I have been looking up and down on the Android Developer CameraX page for an answer first link second link but I can't find any. Maybe I am not smart enough to find the solution here.
Any help is much appreciated!
AbstactCameraXActivity.java
...ANSWER
Answered 2021-Jul-02 at 07:51I have changed the cameraX version to 1.0.0 from 1.0.0-alpha5
QUESTION
I want my application to say a voice message when I press the button "btnObjectDetection". The application does an object detection task, and I want a welcome message. Currently, the application compiles and runs without problem but does not say anything from the voice message. Please help me :( This is my code:
activity_main.xml
...ANSWER
Answered 2021-May-27 at 07:36Currently, the application compiles and runs without problem but does not say anything from the voice message.
I see there is no issue in your code for TTS.
The problem is with your native lib. Just comment on this code once and try once:
QUESTION
I've trained Yolov5s model in colab.research env. After training I've moved best.pt to main yolov5 directory and renamed file to yolov5s.pt.
After calling export.py i got error listed below
...ANSWER
Answered 2021-May-21 at 23:22Fixed with linking model in runs directory:
QUESTION
Summary/TL;DR: ML Object Detection application is unable to detect objects because images aren't being acquired by analyze()
method.
I'm currently working on a mobile application using CameraX and Google ML Kit written in Java. The purpose of the application is to detect objects with a real time camera preview. I implemented ML Kit using this guide aptly titled "Detect and track objects with ML Kit on Android" (base model option) to detect objects in successive frames within the application.
However, upon running the application, it launches on my device and the camera preview continues to work but the application does not carry out its intended effect of actually detecting objects and displaying it on my screen. To attempt to resolve this, I had found this StackOverflow answer that very closely resembles this issue. To my dismay, the user had built their application using a custom model (tflite). This differs from mine as I am using the base model. According to my research, this uses the ML Kit's on-device's object detection. The code being applied is restricted to what is present within the aforementioned documentation. Since my IDE (Android Studio) does not display any errors within the syntax, I am unsure as to why any object detection does not appear to be present on my application. Displayed below is the necessary code that had been used:
CODE ...ANSWER
Answered 2021-Apr-02 at 18:33As mentioned in the other StackOverflow question you linked, you need to bind the analysis use case to make it work.
One tip to help debug this is that you can add some Log.d(..) in onSuccess to check the size of the returned object list and in onFailure to print out the exception. Then when running, you could use adb logcat or the AS log tab to check the info to make sure things are running.
Another improvement you can make is that, you don't need to create a new object detector each frame. You can create one out side the analyze method and reuse it.
QUESTION
I am trying to setup an ImageAnalyzer with my Android app so I can run object classification using Google's ML Kit API. The issue I am currently facing, as the title suggests, is constantly seeing the error "Failed to initialize detector".
I've reread this tutorial about three times now and followed this post about someone facing the same error (although for a different reason) to no avail. I've also made sure everything with the CameraX API (except the ImageAnalyzer code that I will show in a second) works as expected.
As mentioned in the ML Kit documentation, here is the code I have regarding setting up a LocalModel
, a CustomObjectDetectorOptions
, and an ObjectDetector
:
ANSWER
Answered 2021-Feb-26 at 07:42I managed to fix my issue before anyone answered, but in case anyone who just started to learn Android like me I'll leave my solution here.
Basically, remember to create an asset folder in the /src/main directory rather than the /src/androidTest directory :P
Once I did that, the model loaded correctly and now I just have to figure out how to display the results in my application.
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