ajout gitignore

.gitignore

-**/sol**
+**/sol**.js
+**/sol**.html

features/pixels.js

+GetPixelRGBATask=function(opt_options) {
+  this.x=opt_options.x;
+  this.y=opt_options.y;
+  this.output=opt_options.output;
+}
+
+GetPixelRGBATask.prototype.process=function(imageData) {
+  var pos=(this.y*imageData.width+this.x)<<2;
+  var r=imageData.data[pos];
+  var g=imageData.data[pos+1];
+  var b=imageData.data[pos+2];
+  var a=imageData.data[pos+3];
+
+  this.output.innerHTML=this.x+"x"+this.y+" : ";
+  this.output.innerHTML+="<font color='red'>"+r+"</font> | ";
+  this.output.innerHTML+="<font color='green'>"+g+"</font> | ";
+  this.output.innerHTML+="<font color='blue'>"+b+"</font> | ";
+  this.output.innerHTML+="<font color='gray'>"+a+"</font>";
+}