Use upload key

.gitignore

@@ -1,3 +1,3 @@
 build
 affdex-sdk
-
+uploadkey.json

echoserver.py

@@ -2,6 +2,10 @@ import tornado.websocket
 import tornado.web
 import tornado.ioloop
 import os
+from PIL import Image
+import numpy as np
+from blend_modes import blend_modes
+from io import BytesIO
 
 web_dir = os.path.join(os.path.split(__file__)[0], 'www')
 output_dir = os.path.join(os.path.split(__file__)[0], 'output')
@@ -26,9 +30,33 @@ class WebSocketHandler(tornado.websocket.WebSocketHandler):
 		self.connections.remove(self)
 		print ("Client disconnected")
 
+class CompositeHandler(tornado.web.RequestHandler):
+	def get(self, img1, img2):
+		# images can only be in the output dir
+		img1 = os.path.join(output_dir, os.path.basename(img1))
+		img2 = os.path.join(output_dir, os.path.basename(img2))
+
+		i1 = np.asarray(Image.open(img1).convert('RGBA'), dtype=float)
+		i2 = np.asarray(Image.open(img2).convert('RGBA'), dtype=float)
+
+		diffI = blend_modes.difference(i1,i2, opacity=1)
+		noAlpha = diffI[:,:,0:3]
+		maxValue = np.max(noAlpha)
+		# make sure a black image wont crash the system
+		factor = 255/maxValue if maxValue>0 else 0
+		composite = Image.fromarray(np.uint8(noAlpha * factor))
+		byteImgIO = BytesIO()
+		composite.save(byteImgIO, format="png")
+		byteImgIO.seek(0)
+		# print(len(byteImgIO.read()))
+		self.write(byteImgIO.read())
+		self.set_header("Content-type",  "image/png")
+
+
 application = tornado.web.Application([
 	(r"/ws", WebSocketHandler),
 	(r"/output/(.*)", tornado.web.StaticFileHandler, {"path": output_dir}),
+	(r"/composite/(.*)/(.*)", CompositeHandler),
 	(r"/(.*)", tornado.web.StaticFileHandler, {"path": web_dir, "default_filename": 'index.html'}),
 ],debug=True)
 

portrait_compositor.py

@@ -49,12 +49,16 @@ environment = {
 
 updateGoesOk = True;
 
+with open(os.path.join(curdir, 'uploadkey.json')) as fp:
+	uploadkey = json.load(fp)
+
 def updateStats(type, name, count, image_filename):
 	params = {
 		'type': type,
 		'name': name,
 		'time': int(time.time()),
 		'case_count': int(count),
+		'key': uploadkey,
 	}
 	# try:
 	# 	ws = create_connection("ws://localhost:8888/ws")

requirements.txt

@@ -1,3 +1,4 @@
 websocket-client==0.54
 requests==2.12
 tornado==5.1
+blend_modes

www/composite_loader.js

@@ -6,6 +6,8 @@ class Face {
         this.imgEls = [];
         this.valueEls = [];
 
+        this.img = "";
+
         let els = document.querySelectorAll(`[data-face='${this.id}']`);
         for(let el of els) {
             if(el.tagName == 'IMG') {
@@ -25,11 +27,12 @@ class Face {
     }
 
     update(imgUrl, value) {
+        this.img = imgUrl
         for(let el of this.valueEls) {
             el.textContent = new Intl.NumberFormat("nl").format(value);
         }
         for(let el of this.imgEls) {
-            el.src = imgUrl;
+            el.src = '/output/'+imgUrl;
         }
     }
 }
@@ -61,6 +64,18 @@ class Bar {
 
 }
 
+class CompositeImage {
+    constructor(elId, face1, face2) {
+        this.el = document.getElementById(elId);
+        this.face1 = face1;
+        this.face2 = face2;
+    }
+
+    update() {
+        this.el.src = `/composite/${this.face1.img}/${this.face2.img}`;
+    }
+}
+
 var bar = new Bar(document.getElementById('graph'));
 
 var faces = {
@@ -74,13 +89,26 @@ var faces = {
     'unknown_side': new Face('unknown_side')
 }
 
+var composites = [
+    new CompositeImage('composite-male_front', faces['male_front'], faces['front']),
+    new CompositeImage('composite-male_side', faces['male_side'], faces['side']),
+    new CompositeImage('composite-unknown_front', faces['unknown_front'], faces['front']),
+    new CompositeImage('composite-unknown_side', faces['unknown_side'], faces['side']),
+    new CompositeImage('composite-female_front', faces['female_front'], faces['front']),
+    new CompositeImage('composite-female_side', faces['female_side'], faces['side']),
+];
+
 var update = function() {
     let req = new XMLHttpRequest();
     req.addEventListener("load", function(e){
         let data = JSON.parse(this.responseText);
         console.log(data);
         for(let name in data){
-            faces[name].update('/output/'+data[name]['img'], data[name]['count']);
+            faces[name].update(data[name]['img'], data[name]['count']);
+        }
+
+        for(let composite of composites) {
+            composite.update();
         }
 
         bar.setValue('male', data['male_front']['count'] + data['male_side']['count'])

www/index.html

@@ -110,10 +110,7 @@
             </div>
             <div class='gender'>
                 <div class='diff-layer'>
-                    <img data-face="male_front" src="unknown_side-1000x1000-3.png"><img data-face="male_side" src="unknown_side-1000x1000-3.png">
+                    <img id="composite-male_front" src="unknown_side-1000x1000-3.png"><img id="composite-male_side" src="unknown_side-1000x1000-3.png">
-                </div>
-                <div class='original-layer'>
-                    <img data-face="front" src="unknown_side-1000x1000-3.png"><img data-face="side" src="unknown_side-1000x1000-3.png">
                 </div>
                 <div class='label'>Male</div>
             </div>
@@ -121,19 +118,13 @@
         <div>
             <div class='gender'>
                 <div class='diff-layer'>
-                    <img data-face="unknown_front" src="unknown_side-1000x1000-3.png"><img data-face="unknown_side" src="unknown_side-1000x1000-3.png">
+                    <img id="composite-unknown_front" src="unknown_side-1000x1000-3.png"><img id="composite-unknown_side" src="unknown_side-1000x1000-3.png">
-                </div>
-                <div class='original-layer'>
-                    <img data-face="front" src="unknown_side-1000x1000-3.png"><img data-face="side" src="unknown_side-1000x1000-3.png">
                 </div>
                 <div class='label'>Unknown</div>
             </div>
             <div class='gender'>
                 <div class='diff-layer'>
-                    <img data-face="female_front" src="unknown_side-1000x1000-3.png"><img data-face="female_side" src="unknown_side-1000x1000-3.png">
+                    <img id="composite-female_front" src="unknown_side-1000x1000-3.png"><img id="composite-female_side" src="unknown_side-1000x1000-3.png">
-                </div>
-                <div class='original-layer'>
-                    <img data-face="front" src="unknown_side-1000x1000-3.png"><img data-face="side" src="unknown_side-1000x1000-3.png">
                 </div>
                 <div class='label'>Female</div>
             </div>

www/styles.css

@@ -227,18 +227,7 @@ html{
         margin-top: 40px;
     }
 
-    #differences .gender .diff-layer{
-        position: absolute;
-        top:0;
-        right:0;
-        left:0;
-        mix-blend-mode: difference;
-    }
     
-    #differences .gender .original-layer img{
-        /* black yields no difference for blend-mode */
-        border-color: black;
-    }
 
     #differences .gender img{
         width: 170px;