I am trying to get easyocr running on a raspberry pi 4 and could use some suggestions or help. I am using the 64 bit build from May 7th - 2021 (2021-05-07-raspios-buster-arm64.zip). When I do a fresh OS install, I execute the following commands:
sudo vi /etc/dphys-swapfile # change swapfile to 2GB
sudo raspi-config # expand the filesystem to use the entire SD card
sudo apt-get update #
sudo apt-get upgrade #
sudo apt autoremove # The following packages will be REMOVED: python-colorzero
sudo python -m pip install --upgrade pip # upgrade pip
sudo pip3 install --upgrade pip # upgrade pip3
sudo python3 -m pip install numpy --upgrade # upgrade numpy
sudo python3 -m pip install easyocr # install easyocr
I open a python3 editor and execute the following commands:
import cv2
import torch
import easyocr
reader = easyocr.Reader(['en'])
results = reader.readtext('/home/pi/Downloads/Calibration.bmp')
The last command results in an Illegal instruction error. I figured openCV was the likely culprit so I compiled it from source and tried again. I got the same error. I have tried going with a 32 bit build, but torch needs 64 bit to work. I have tried the same sequence and code through Anaconda on a windows 64 bit machine and it works without issue.
My next two attempts will be to build easyocr and/or torch from source , but I am grasping at straws here. I am really not sure how to figure out what software is causing the illegal instruction so I can hone in on that package. I would appreciate any thoughts on what I can do to get more information or thoughts on what things I can try.
Thanks a bunch.
[EDIT]I installed python3-dbg so I could run the application under gdb. When I do, the error I get is
Thread 1 "python3-dbg" received signal SIGILL, Illegal instruction. 0x0000ffffe4189fc8 in exec_blas () from
/home/[USER]/.local/lib/python3.8/site-packages/torch/lib/libtorch_cpu.so
[EDIT2]I found a git hub repository that creates wheel files (WHL) for those having illegal instruction errors like me. So far it hasn't helped. I have tried a few, but am going to use a more systematic approach. to see if I can find the right combination.
