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--- guides:opencv [2024/01/30 02:13] – discord
+++ guides:opencv [2024/02/02 04:22] (current) – discord
@@ Line 1: / Line 1: @@
-Instructions for integrating OpenCV with Folk.
+//Original Author: Jacob Haip.
+Contributions welcome!//
+Instructions for integrating OpenCV with Folk. This guide involves a manual compilation set outside of folk, but the creation of the wrapper files and the compilation (via an TCL "exec" call) could also be moved within a folk program to completely encapsulate the code.
 . Install OpenCV
@@ Line 5: / Line 8: @@
    sudo apt-get install -y libopencv-dev
-. Create a C wrapper for the OpenCV functions you want to use
+. Create a C wrapper for the OpenCV functions you want to use. I saved these files in a new ~/folk/play/opencv folder.
 OpenCVWrapper.h
@@ Line 133: / Line 136: @@
     Claim $this' has region [region move $r down 110%]
 }
+set ::opencvOldFrames [list]
 When $this' has camera slice /slice/ & $this has region /r/ {
     set grayImg [opencvAdaptiveThreshold $slice]
@@ Line 138: / Line 143: @@
     Wish to draw an image with center $center image $grayImg radians 0 scale 2
-    After 100 milliseconds {
+    lappend ::opencvOldFrames $grayImg
-        image freeImage $grayImg
+    if {[llength $::opencvOldFrames] >= 10} {
+        set ::opencvOldFrames [lassign $::opencvOldFrames oldestFrame]
+        image freeImage $oldestFrame
     }
 }
 </code>
+{{:guides:opencv-threshold-example.jpeg?400|}}