From cb6ea13a04ea2da415ef8ad24afb2eebde87168e Mon Sep 17 00:00:00 2001
From: Neil Gershenfeld <gersh@cba.mit.edu>
Date: Sat, 6 Jan 2018 17:37:28 -0500
Subject: [PATCH] motion detection working?
---
modules/image/motion detect | 29 ++++++++++++++++++++++-------
1 file changed, 22 insertions(+), 7 deletions(-)
diff --git a/modules/image/motion detect b/modules/image/motion detect
index 5d9998c..fb161a6 100755
--- a/modules/image/motion detect
+++ b/modules/image/motion detect
@@ -27,6 +27,7 @@ var name = 'motion detect'
var init = function() {
mod.threshold.value = 0.1
mod.time.value = 15
+ mod.dpi = 100
timeout()
}
//
@@ -51,14 +52,11 @@ var inputs = {
var outputs = {
image:{type:'RGBA',
event:function(){
+ var ctx = mod.img.getContext("2d")
+ var img = ctx.getImageData(0,0,mod.img.width,mod.img.height)
mods.output(mod,'image',img)}},
imageInfo:{type:'object',
- event:function(){
- var obj = {}
- obj.name = mod.name.nodeValue
- obj.dpi = parseFloat(mod.dpitext.value)
- obj.width = mod.img.width
- obj.height = mod.img.height
+ event:function(obj){
mods.output(mod,'imageInfo',obj)}},
trigger:{type:'event',
event:function(){
@@ -154,9 +152,26 @@ function compare_images() {
var webworker = new Worker(url)
webworker.addEventListener('message',function(evt) {
window.URL.revokeObjectURL(url)
+ mod.change.nodeValue = 'relative change: '+evt.data.change.toFixed(3)
+ if (evt.data.change > parseFloat(mod.threshold.value)) {
+ var obj = {}
+ var date = new Date()
+ var year = date.getFullYear()
+ var month = ('0'+(1+parseInt(date.getMonth()))).slice(-2)
+ var day = ('0'+date.getDate()).slice(-2)
+ var hour = ('0'+date.getHours()).slice(-2)
+ var minute = ('0'+date.getMinutes()).slice(-2)
+ var second = ('0'+date.getSeconds()).slice(-2)
+ var name = year+'-'+month+'-'+day+'-'+hour+'-'+minute+'-'+second+'.png'
+ obj.name = name
+ obj.dpi = mod.dpi
+ obj.width = mod.img.width
+ obj.height = mod.img.height
+ outputs.imageInfo.event(obj)
+ outputs.image.event()
+ }
var h = mod.img.height
var w = mod.img.width
- mod.change.nodeValue = 'relative change: '+evt.data.change.toFixed(3)
if (w > h) {
var x0 = 0
var y0 = mod.canvas.height*.5*(1-h/w)
--
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