[enh] Adds an opencv realtime video capture + point detection

clitools/generators/opencv2.py

@@ -0,0 +1,47 @@
+import cv2
+import numpy as np
+from PIL import Image
+from numpy import asarray
+import potrace
+color = 65280
+camera = cv2.VideoCapture(0)
+camera.set(cv2.CAP_PROP_FRAME_WIDTH, 160)
+camera.set(cv2.CAP_PROP_FRAME_HEIGHT, 120)
+camera.set(cv2.CAP_PROP_FPS, 5)
+print("camera FPS:{} height:{} width:{}".format(camera.get(cv2.CAP_PROP_FPS), camera.get(cv2.CAP_PROP_FRAME_WIDTH), camera.get(cv2.CAP_PROP_FRAME_HEIGHT)))
+while(camera.isOpened()):
+    pl = []
+    ret, frame = camera.read()
+    if ret==True:
+        gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
+        cv2.Canny(gray, 100,120 )
+        (thresh, gray) = cv2.threshold(gray, 127, 255, cv2.THRESH_BINARY)
+        nb = cv2.cvtColor(asarray(gray), cv2.COLOR_RGB2BGR)
+        image = Image.fromarray(nb).convert("1")
+        image.save( "/tmp/cv.png")
+        bmp = potrace.Bitmap( asarray( image ) )
+        # Trace the bitmap to a path
+        path= bmp.trace(turdsize=16,alphamax=0.0, opticurve=0, opttolerance=1.0)
+        # Iterate over path curves
+        for curve in path:
+            start = curve.start_point
+            pl.append([start[0],start[1],0])
+            pl.append([start[0],start[1],color])
+            for segment in curve:
+                end_point_x, end_point_y = segment.end_point
+                if segment.is_corner:
+                    #c_x, c_y = segment.c
+                    pass
+                else:
+                    c1_x, c1_y = segment.c1
+                    x, y = segment.c2
+                    pl.append([x,y,color])
+            pl.append([start[0],start[1],0])
+            ret, frame = camera.read()
+            #print(len(pl), flush = True)
+        print(pl, flush = True)
+    else:
+        break
+
+# Release everything if job is finished
+camera.release()

server/install.sh

@@ -1,48 +1,32 @@
 #!/bin/bash
-sudo apt upgrade
-sudo apt install python3-pip 
-sudo apt install redis-server
-# for dedicated computer after fresh linux install. todo : ask if needed. 
-#sudo apt install git
-#sudo apt install syncthing
-#sudo apt install htop
-#sudo apt install screen 
-#sudo apt install tmux
-#sudo apt install nginx
-#sudo apt install supervisor  
-#sudo apt install ssh
-# todo one day : modify correct path in syncthing.conf
-#sudo cp syncthing.conf to /etc/supervisor/conf.d/
-pip3 install scipy
-pip3 install numpy
-#pip install pygame==1.9.2
-#pip3 install pygame==1.9.2
-pip3 install redis
-pip3 install pysimpledmx 
-pip3 install DMXEnttecPro
-sudo apt install libasound2-dev
-sudo apt install libjack-dev
-pip3 install python-rtmidi 
-pip3 install mido
-git clone https://github.com/ptone/pyosc --depth 1 /tmp/pyosc && cd /tmp/pyosc && sudo ./setup.py install 
-pip3 install tk
-cd ../
-python3 configure.py
-# todo : ask for computer ip and run updateUI.py
-cd /tmp
-sudo apt install portaudio19-dev
-sudo apt install cmake
-git clone https://github.com/Ableton/link.git
-cd link
-git submodule update --init --recursive
-mkdir build
-cd build
-cmake ..
-cmake --build .
-cd /tmp/
-git clone --recursive https://github.com/gonzaloflirt/link-python.git
-cd link-python
-mkdir build
-cd build
-cmake ..
-cmake --build .
+
+# Check if root
+[[ 0 -ne $UID ]] && { echo "Must run as root. Exiting."; exit; }
+
+# Propose some packages
+echo -e "\nThe following packages are not mandatory, add them as needed.\n"
+declare -a ADD_PACK
+POS_PACK=( htop nginx screen ssh ssl-cert supervisor syncthing tmux  )
+POS_PACK_LEN=${#POS_PACK[@]}
+for i in ${!POS_PACK[@]} ; do
+  pack=${POS_PACK[i]}
+  read -e -n 1 -p "$((i+1))/${POS_PACK_LEN} Add package ${pack} ? [Y/n]: "
+  REPLY=${REPLY:-Y}
+  [[ "Y" == ${REPLY^^} ]] && ADD_PACK+=(${pack})
+done
+
+# Propose the install 
+PACK_LIST=$( echo "cmake git libasound2-dev libjack-dev libsdl1.2-dev network-manager portaudio19-dev python3-dev python3-pip python3-rtmidi redis-server ${ADD_PACK[@]}" | sort )
+echo -e "\nYou are goind to install:\n$( for pack in ${PACK_LIST[@]}; do echo ' * '$pack;  done; )\n"
+read -e -n1 -p "OK? [Y/n]: "
+REPLY=${REPLY:-Y}
+[[ "N" == ${REPLY^^} ]] && exit
+
+# Run the install
+apt install -y --no-install-recommends $PACK_LIST
+pip3 install setuptools
+pip3 install DMXEnttecPro mido numpy pysimpledmx redis scipy 
+git clone https://github.com/ptone/pyosc --depth 1 /tmp/pyosc && cd /tmp/pyosc && ./setup.py install 
+cd /tmp && git clone https://github.com/Ableton/link.git && cd link && git submodule update --init --recursive && mkdir build && cd build && cmake .. && cmake --build . 
+cd /tmp/ && git clone --recursive https://github.com/gonzaloflirt/link-python.git && cd link-python && mkdir build && cd build && cmake .. && cmake --build . 
+cd /opt/ && git clone https://git.interhacker.space/teamlaser/LJ