"In charge" trick when loading a bitmap.

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• Charger changes the pixel value after loading as bitmap

  Hi all

  My goal is to load two images and compare its color pixel-by-pixel information. For this I used "flash.display.Loader' class to load the images, and once the load finished I catalogued the content loaded bitmap object (loaderObj.content as Bitmap). Finally, I'll get the bitmapdata of the bitmap of the two images and compare the pixels.

  Now the problem is the color of the original image information and the loaded bitmap is slightly different. For example, the color value of the pixels of the image attached image1.jpg is 0xDDDDDD for full 1366 x 768. And for the image even when it is loaded as bitmap color value of pixels are different from the original value (for a few pixels only, not all pixels are different).

  I gave you the source code and sample images.

  Please can someone help me how to solve this problem?

  <? XML version = "1.0" encoding = "utf-8"? >

  " < = xmlns:fx s:WindowedApplication ' http://ns.Adobe.com/MXML/2009 "

  xmlns:s = "library://ns.adobe.com/flex/spark".

  xmlns:MX = "library://ns.adobe.com/flex/mx".

  width = "1376" height = "800."

  ShowStatusBar is kept = "false" >

  < fx:Declarations >

  <! - Place non-visual elements (e.g., services, items of value) here - >

  < / fx:Declarations >

  < fx:Script >

  <! [CDATA]

  private function loadBtn_ClickHandler (): void {}

  var file:File = new queue (File.desktopDirectory.nativePath);

  file.addEventListener (Event.SELECT, onFileSelectionHandler);

  file.browseForOpen ('open image', [new FileFilter ("Images", "*.gif, *.jpg; *.JPEG; *.png")]);

  }

  private void onFileSelectionHandler(ev:Event):void {}

  var loadedFilePath:String = (ev.target as a file) .nativePath;

  loadImageAsBitmap (loadedFilePath);

  }

  / * Load the bitmap image using the loader * /.

  private void loadImageAsBitmap(url:String):void {}

  var loader: Loader = new Loader();

  load the content as a bitmap

  loader.contentLoaderInfo.addEventListener (Event.COMPLETE, onContentLoadComplete);

  loader.contentLoaderInfo.addEventListener (IOErrorEvent.IO_ERROR, onContentLoadFail);

  Loader.Load (new URLRequest (url));

  }

  private void onContentLoadComplete(ev:Event):void {}

  var loaderInfo:LoaderInfo = ev.target as LoaderInfo;

  var bitmap: Bitmap = loaderInfo.content as Bitmap;

  printPixelValue (bitmap.bitmapData);

  container_ID. AddChild (bitmap);

  }

  private void onContentLoadFail(ioe:IOErrorEvent):void {}

  trace ("Image Load Failed");

  }

  private void printPixelValue(bmData:BitmapData):void {}

  var initPixelValue:Number = - 1;

  for (var countI:int = 0; countI < bmData.height; countI ++) {}

  var countI:int = 1;

  for (var countJ:int = 0; countJ < bmData.width; countJ ++) {}

  var pixelValue:Number = bmData.getPixel32 (countJ, countI);

  If (pixelValue! = initPixelValue) {}

  initPixelValue = pixelValue;

  Print pixel value for a single line

  trace ("value of Pixel to" + countI + "x" + countJ + "is:" + pixelValue);

  }

  }

  trace ("value of Pixel to" + countI + "x" + countJ + "is:" + pixelValue);

  //}

  }

  []] >

  < / fx:Script >

  < s:Button id = "loadBtn_ID" label = "Load!" click = "loadBtn_ClickHandler ()" "

  x = '5' y = "5" height = "20" / >

  < mx:UIComponent id = 'container_ID' x '5' = y = "30" width = "1366" height = "768" / >

  < / s:WindowedApplication >

  Sample image:

  

  Thank you all,

  Update the sdk to 4.6.0 fixed the problem

• Bug charger picture when defining data source dynamically

  I scanned old posts but don't see any reference to the problem/bug with Image/SWFLoader class.
  
  The problem is that when I insert different images in the same instance of the Image the Image instance does not empty the old bitmap data when the source is changed. For example, I have an application with a display of the Image making of .jpg whose names and source are in a list. A user clicks on an item in the list and the image is loaded into the instance of the Image (source property is set dynamically). What is totally unforgivable, he has the sense to use the same bitmap data if I reload the source of the image.
  
  No there is no way to get the Image class to empty its bitmap content?
  
  The only solution I can think of is trying to remove and re-instantiate the example Image when the user selects a new image to display.
  
  (BTW, I tested the above in Flex 1.5 and, of course, the old class Loader completely eliminated the old content when loading new content - just as it should be in Flex 2.0!)

  I found a way to remove the bitmap data from the loader on the blog of GSkinner:
  http://www.gskinner.com/blog/archives/2006/08/as3_resource_ma_2.html

  The trick is to access the bitmap data and call the dispose() method to erase it from memory. Why this has not been implemented in the first Image class is still a mystery to me...

  
  http://www.Adobe.com/2006/mxml"layout ="vertical">

  
  Import mx.controls.Image;
  private var blorch:Image;
  private void add (): void {}
  blorch = new Image();
  blorch.source = "images/P001.jpg";
  blorch. Width = 100;
  blorch. Height = 100;
  this.addChild (blorch);
  }
  private void remove (): void {}

  var bmp:Bitmap = blorch.content as Bitmap;
  var bmpData:BitmapData = bmp.bitmapData;
  bmpData.dispose ();
  this.removeChild (blorch);

  }
  ]]>
  

  
  

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  Hello comrades! My trusty 2011 MBA 13 "served me wonderfully until he started to crash and restart very often (with the message"your computer restarted because of a problem", ==> http://i.stack.imgur.com/0Fpgn.jpg ).

  This happens only some time after it is connected to a MagSafe charger - my wife also has an MBA and the same thing happens when I use his charger, so I guess that this is unrelated to the charger. Also, since a few days ago the green light on the adapter is not always light up immediately - I must move a bit until it fits and starts to load effectively.

  Someone knows something similar? BTW, my battery seems to be ok according to system information:

  Battery information:

  Information model:

  Serial number: D8620930313DKRNAZ

  Manufacturer: SMP

  Device name: bq20z451

  Pack Lot Code: 0

  PCB batch number: 0

  Firmware version: 406

  Review of material: 000D

  Review of cells: 162

  Information on this charge:

  Charge remaining (mAh): 4486

  Fully charged: No.

  Loading: No.

  Full Charge capacity (mAh): 5257

  Health information:

  Cycle Count: 255

  Condition: Normal

  Battery: Yes

  Amperage (mA):-3095

  Voltage (mV): 7694

  Any ideas? It could always be connected to the battery? Or I might have something else (for example the MagSafe connector in the laptop) replace?

  Thank you!!!

  It seems that the MBA had a kernel panic.  Open a session and post it by these instructions:

  https://support.Apple.com/en-us/HT201753

  Ciao.

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  Hello

  My question is very simple.  I just want to know that when loading three consecutive images in a line (via LOADER() and URLREQUEST()), if I only need to look to the completion of the last load of the image.  Or, all three files will load at the same time (the smallest file fill everything first)?

  In addition, the following URL relatative is acceptable?

  ".. /.. "/ Usifb/Images/Photos/Animations/WheelFreeTractor.png".

  Kind regards

  Ron

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