If you would like a full explanation on why Python virtual environments are good practice, absolutely. I've read somewhere that we may have to adjust the minSize parameter It's likely that the faces are too small at that distance. I would also keep in mind the problem you are trying to solve. Thanks Having a script run at startup is actually quite simple. You can do it simply typing the following command on the terminal window. So my problem was really a non-problem though others may benefit from knowing this too!! Whether you use virtualenv or venv is a matter of preference. Provide details and share your research! Anyway, here is the contents of test.
After I open a new terminal, logout, or reboot my Pi, I cannot execute mkvirtualenv or workon. As long as you follow the steps I detailed, your install should go painlessly. Will this solution lead to problems ahead? I have read all of the comments in regards to this issue. And this causes the import cv2 command to fail. Try and share your results Cheers! Note: I am working inside my py35-cv virtual environment when running the cmake commands.
Also, ensure that the paths and filenames in the above commands are correct for your Raspberry Pi. Anyone who has dealt with image processing in relation to the Raspberry Pi will sooner or later come across the library. Important: It is my recommendation that you proceed with a fresh install of Raspbian Stretch! At 99% percentage some people might find it taking too long for the process to complete wait patiently and it should get finished. That will make the bash session drop into the cv virtual environment prior to calling your Python script. Please advice, thank you very much. I would be very happy if you could recommend some suggestions.
Hey Morganna, there are a lot of reasons why the import statement could fail. We then use the sym-link command to move the cv2. So the only thing I can do is disconnect the power line and reboot it. While Haar cascades are less accurate, they are also faster. I would also suggest that you take a look at which includes a Raspbian. Regardless, you did the right thing by moving it to the site-packages directory.
Would you give some idea? Thanks and hi again, I almost read all of the comments on this page, and I updated my profile as you mentioned. Convert that filtered image to gray scale 5. Secondly, the partial solution I used seems to suggestion the interpreter path in Thonny was not pointing to the. After a lot of retries, I found that I was having some intermittant network issues. Any way of making my code run on all 4 cores? Cheers, Leon Hi Leon — that is the intended behavior of Python virtual environments. I tried serveral times and did follow your great tutorial in detail.
I would like to use the unit as a type of trail camera, with animal recognition and discarding some photos but saving others according to type of animal. Sure, I can look into doing some benchmark posts. I will be very happy if you can help me. Hear Adrian, thanks a lot for this tutorial — i was able to go through it without any errors. And I tried to squeeze in the switch in cmake, but still got an fatal error: stdlib.
However, due to compilation dependencies I would play it safe and do make clean followed by make -j5. Figure 7: Examples of the Raspberry Pi home surveillance system detecting motion in video frames and uploading them to my personal Dropbox account. These generators create a bridge between C++ and Python which enables users to call C++ functions from Python. To be more specific when I run: python cvTest. I am looking into learning python and linux commands.
Get pip first: wget -O get-pip. When I try to use cv2. Here I am using Rasbian Stretch installed on Raspberry Pi 3. The thing is, I was saving my script on my desktop. Would you like to answer one of these instead? Again Thanks for the last answer. Also, after running sudo make install, be sure to check your dist-packages directory.