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Questions tagged [openmv]

16 questions
3
votes
1 answer

How to only send self-allocated framebuffer to OpenMV IDE?

For a motion detection algorithm on the OpenMV platform, I allocate a second framebuffer, which is being updated every frame. Now the algorithm works, but I would like to show the result framebuffer in the OpenMV IDE. As shown in this thread, it is…
cansik
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0 answers

Is there a simple way to transfer image from openMV to PC?

I am working on the flir lapton3.5 with openMV. With the help of openMV, it's easy for me to get the thermal image from filr lapton3.5, don't have to concern about the complicated spi/iic agreement. Well, I want to show the real-time thermal image…
xiaofei lu
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1 answer

IDE error : MemoryError: FB Alloc Collision

So I am having trouble with my OpenMV IDE concerning this code here. This code is in my main.py file. for c in img.find_circles(threshold = 1600, x_margin = 10, y_margin = 10,r_margin = 10): img.draw_circle(c.x(),c.y(),c.r(),color =…
Chase
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1 answer

How to create an escape path for my micropython code?

I’m working on a project in micropython using an openMV camera and blob detection to determine the orientation of an object. My problem is when the check is executed, I get an error “ArilY is not defined”, because the object isn’t in the camera view…
Hannah Reigi
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0 answers

How to set condition to exit out of loop once an image is saved python/micropython

I am doing a haar cascade to detect license plate images. Once such image is detected, i crop and save it to disk. This image will then be passed on (loaded) further down for processing & segmentation. It's a 'live feed' so it will continually…
Parlielion
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How to integrate an OpenMV H7 Plus optical flow camera with a flight controller running PX4?

I've having some difficulty getting my flight controller (HolyBro Durandal) to read data from my OpenMV optical flow camera. I'm using optical flow because I want to operate my drone in a GPS denied environment. Flight controllers need position data…
Patrick Lafferty
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1 answer

USB VCP Acces denied with pySerial

I just put my hand on a OpenMV Cam H7 Plus that is using micro-python. I am trying an example that is supposed to take a python program to ask for a picture from the camera and save it. As far as I understand (still new to python) is the camera IDE…
Sylph22
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Would the Openmv m7 camera module be suitable for an iris recognition system?

I am looking for a suitable camera for my iris recognition system but the prices of some of the cameras are steep, i stumbled on the openmv m7 which seems promising but the max resolution is 640x480 8 bit greyscale. The camera needs to be 20cm from…
Marothi Letsoalo
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Reading video from OpenMV H7 camera over ttyACM0 port using c++ code

I have an OpenMV H7 camera who's output I need to read into OpenCV. Now, the serial output is ttyACM0 where I am able to stream image frames. How can I read these frames in c++ code? I cannot use cv::VideoCapture() as the camera is not recognized as…
heisenburg007
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How to transfer data between the openmw camera and my PC, via usb connection

I bought an openmv camera, and I don't understand how to work with it. As I understand it, it is main.py a script in which you can write your own code to work with it. Okay, that's clear. But here's the question: I want to write 1 more qt app that…
Timama
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1 answer

Any example workflow from TensorFlow to OpenMV?

I have trained an image multi classification model based on MobileNet-V2(Only the Dense layer has been added), and have carried out full integer quantization(INT8), and then exported model.tflite file, using TF Class () to call this model. Here is…
fjybiocs
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1 answer

What is "The supported operations" means in TensorFlow Lite for Microcontrollers?

I want to create an image classification model for facial recognition with a OpenMV Cam H7 and tensorflow. It's explained in the tensorflow documentation that "TensorFlow Lite for Microcontrollers currently supports a limited subset of TensorFlow…
Denny Nur Ramadhan
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0
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1 answer

Problems using OpenCV imwrite method with image from OpenMV camera

I am trying to stitch some images taken from my OpenMV H7 camera using OpenCV's stitching algorithm. I ran into the problem that I cannot write or read these images, which made me think that there are some compatibility issues. To be more exact, I…
user13639127
0
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2 answers

Redirect Stderr in micropython?

Using micro python I am trying to redirect stderr to a file however I dont have access to the run command on the board so I cannot do any shell redirect commands like >> > |. I'm curious if there is a way to do this in Micropython. I've…
Kevin Crum
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Python: self randomly not defined

I am running my code with micropython on that camera: OpenMV Camera I randomly get the error in python that self is not defined. This is how my python code looks like: (the whole file would be too long) class BlobAnalyser: # #constructor and lots of…
desireentz
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