Flash - Comparing Two BitmapData And Get Similarity Percentage
Feb 3, 2012
I'd like to know if there's anyway I can compare two BitmapData and get a "similarity percentage" (knowing how look-alike they are). I've done a bit of research and came across bitmapData.compare(otherBmd), but that only returns if they differ in size, or pixel, and not how much they differ. The point of this was to compare some Bmd obtained through a camera with a library image (so this is what I got so far):
import flash.display.Bitmap;
import flash.display.BitmapData;
var img1:BitmapData = new monaLisa();
var cam:Camera = Camera.getCamera();
var video:Video = new Video(camMock.width,camMock.height);
video.attachCamera(cam);
[Code] .....
Is there any way of checking what percentage of the BitmapData is filled, and what percentage is transparent?You could easily brute-force it by looping through each pixel and counting which ones are empty
When I publish the file, I'm getting the following error message in the Output panel:
**Error** Scene=Scene 1, layer=Layer 2, frame=1:Line 7: The class or interface 'BitmapData.loadBitmap' could not be loaded. var plaid:BitmapData.loadBitmap("plaid");
I am trying to use the reflect class from "http://pixelfumes.blogspot.com/2007/03/reflection-class-v3-with-source .html" but I keep getting this error:
ArgumentError: Error #2015: Invalid BitmapData. at flash.display::BitmapData() at Reflect() at Site_fla::GalleryPage_29/loadThumbs() at Site_fla::GalleryPage_29/sortXML()
[Code]...
btw, first I used assigned thumbContainer as the mc argument (outside the loadThumbs() function) and it worked but not exactly what I wanted... because I thought it is supposed to update when the movieclip is animated but it actually didn't... when I use a scroller, only the thumbs that are first loaded to the stage get the reflection..
Obviously the two date objects are somehow subtly different, and that difference somehow gets overlooked when they're parsed out as strings, but how are they different?
Is there a way of exporting an FLA file to a human-readable format, so that different revisions of a file can be compared?
I found a script for exporting to XML here (post 6):[URL] -- but it doesn't work as advertised - e.g. it doesn't export any details of items in the library.
I've got an xml file that contains some data (which will be created by an external file later on in the project) and i want to be able to check the data in that XML file against a variable stored in flash.
If the value in the XML is equal to or greater than the value in the variable i want to jump to a different frame. If the xml value is less that the variable value i want it to stop and tell the user a message. i've included my code below. I just cant get it to work. Regardless of if the value in the XML file is higer or lower than the variable in flash, it always continues to the final frame instead of stopping accordingly.
ActionScript
Code: //Load xml file that contains amount of cash user has and populate cash_txt box with amount function loadXML(loaded) {
So I know that PV3d looks quite dead. But it is documented over the internet much better. So I decided to develope my product using old but good PV3d engine. Time goes on so I plan to port it sooner or later to Away3d. So I need a list of things that aere not in Away3d that I have in PV3d. And a list of generall use diffrencies (use of cameras, viewports, etc). So where to get comparing list of papervision3d vs Away3d?
Im using flash 8, I always used to import graphics rather than to work with original drawing tools of flash, im studding those tools and I have some questions. is there a way to do mathematic in the parameter like I can do in illustrator (I tried but nothing)?is there any way to repeat and duplicate the last transform? Comparing to illustrator?is there a way I can align the transformation point to other object?is there a way to align points?I can subtract, union...but how to get overlapped shapes?
I got some text that has a background, and the backgroud color can change to any color.
So, I need to find a way to figure if my text will be readable or not, the text should change to black (for example, yellow background) or white ( dark blue background ) if the contrast is not good enough.
So, is there a method to do this?, what would you use to make this work?
I've got a flash site which works fine... except, the preloader percentage in IE is.. well.. not how it's supposed to be... I tested it on every popular commercial browser and it goes from 1 to 100... in f...ing IE it persistently goes from 1 to about 470... ?!?!?! WTF?! btw: the preloader has a rotating circle and a text which displays the percentage... here's the code:
I've been using BitmapData.copyPixels() to draw graphics onto a canvas (Bitmap).I need to rotate the resulting graphics without the use of draw() because it's vastly slower.How can I rotate the target graphic? I'm assuming that there might be a formula or library that I can use which will first reorganize the pixels that make up a graphic based on an origin (point) and radians.I'm pretty certain that I'm not capable of creating such logic, so if there are any known libraries that do this, that would be awesome.I'd like to achieve something similar to XNA's SpriteBatch.Draw() method, which accepts rotation as its 5th argument.
how to use the bitmapData collision method. Now I'm trying to figure out if there is a way to see at what angle or coordinate of the bitmapData the collision happens? I need it in order to figure the accurate bounce angle after the collision occurs.
I'm currently working on a flash game and I need to know how to addChild a BitmapData or draw a BitmapData to screen. If I can't than how can I give a DisplayObject my BitmapData?
I'm working on my first Flash project, and for my preloader I'd like to do a really simple gradient based on the percentage loaded. The preloader says "77% loaded...", where the number 77 is a dynamic text instance called percentLoaded. I'd like the textColor of percentLoaded to change on a gradient from #000000 to #FFFFFF, in gray-scale.Therefore, I can't simply do:percentLoaded.textColor=(currentValue/100)*0xFFFFFF;This just converts the textColor to a multiple of FFFFFF, but outputs a color since it's not three separate components. Currently, here's what I've got:
In AS3 flash - I have a textField with a CSS in it that looks like this:
body { fontSize: 10%; }
When it runs, the font is small. When I click the full screen button, I expected the font to increase proportionally because I set it for 10%. However, this is not working, the font stays at the same size as when not in full screen. I have debugged the onResize event and I can see the style fontSize=10pct when I log it out.
Am I misunderstanding the meaning of % here? I was hoping it would increase the fontSize automatically when going to full screen mode, but that does not appear to be the case.
I've made a mobile version of my software, with low-res images and such, and I can now fully buffer all my content (including a 360 frame animation which is buffered to memory). Problem is, that everytime I update the view, more memory is used.When I write image = new BitmapData();, does it store the previously created BitmapData's in memory? Do I have to flush the memory somehow before I draw my second picture in BitmapData?Example:
ActionScript Code: // In this example I draw using the same bitmapData several times, also //overwriting the first image. Do I have to somehow delete the data first, to
I have an ActionScript project set up using the Flash Builder IDE. Using the Flex 4 compiler to compile it. At the top of my application class, I have:
[SWF(width="100%", height="100%")] public class MediaPlayer extends MovieClip {
This is not acceptable to the compiler to do a release (it throws errors saying it can't parse the width/height values). Pretty annoying. I've tried to do things the "right" way, but none of the following work:
[Code]...
So the width and height attributes are being explicitly set to numbers here. I don't know much about the 'scale' attribute; maybe it is coming in to play here? And, to be clear: it will work as expected if I set the [SWF] meta tag to have width "100%" and height "100%"... so it seems like it actually is preferring the compiled arguments over the browser environment. Perhaps there are other settings I am missing?
I'm looking to do a preloader for my site, what I want to do is that the user sees the percentage loaded, but instead of the typical bar filling up, I want dots to fill the screen. Each dot would appear with each percentage loaded. So for example, if its on 5%, there would be 5 dots, when it moves to 6%, another dot would appear on the screen. So in the end there would be 100 dots/circles on the screen. maybe say in a 10 by 10 grid. I know how to make the percentage loaded appear, but have no idea about the dots.
I've heard a couple of people say only 50% succeed, but that sounds suspiciously low and the people saying that are probably all repeating the same rumor. My own very limited tests with various friends & colleagues work 100% of the time, as long as they have Flash Player 10, but that's obviously not right either.
Do you have some data from a largish test or deployment of home/corporate users?
I am having an issue with using BitmapData.draw(stage). I am getting the following error:
SecurityError: Error #2123: Security sandbox violation: BitmapData.draw: file:///C|/Documents%20and%20Settings/bla...bla...bla.swf cannot access null. No policy files granted access. Here is a portion of my code:
var bd:BitmapData = new BitmapData(2800, 2100); bd.draw(stage);//this is where the error happens All of the files referenced (.xml/.jpg/.swf) are located in the same local folder as the main .swf. How do I get around this error? The main objective is to print the stage using PrintJob(). I am using Flash Professional CS5.5 and publishing to Flash 10.0/10.1. Let me know if I need to supply any more info.
I have to prepare a comparison between the following technologies to present it to my Project Manager, but I fell that I'm lost I want to compare between them in the following areas:the support of online video streaming the budget of using each one Learning Time will be needed to learn the technology Which one is the standard and will target a lot of users The support if I found any problem Bugs and security issues connection to DB, SOA and web services supporting of multi player
I have two lines. One is straight and one is curved. Both were created with the Flash Graphics interface. How would I compare the different Y value for the curved line for any given X. In other words, how do I find a point on curve if I used the CurveTo method.
I've searched everywhere and can't seem to find a clear explanation or basic example. How do you compare the elements of 2 arrays to see if there is a match?
The scenario is to create a lotto game that matches 6 user inputted numbers with 7 randomly generated numbers. The 7th number is a special case (eg bonus ball) WOULD LIKE TO SHOW A KIND HEARTED FALSH GENIUS ALL OF THE SCRIPT IF POSS! (its not tooo long) This code works, but it just outputs the default message: There seems to be a problem with my arrays not comparing? Part of the code is: (prioir to this the user inputs numbers, they are copied to text areas beginning with O, on a button press) On a second button press randomly generated number appear to a timer. //compareResult checks how many numbers match between the two sets of numbers to determine winnings.
I have an array which has strings for the key instead of numbers. when i use .toString() on this array, it does not output a string, leading me to believe that .toString only works when you have numerical keys. Is there an easy way I could compare two of the above arrays?
The AS3 documentation states that if you pass in a string to parseInt that is not a number it will return NaN. However, when I try to compare to NaN the compiler gives me the following error: Warning: 1098: Illogical comparison with NaN. This statement always evaluates to false. The statement is actually true. Comparing to NaN will always return false. How can I compare to NaN to detect if what was parsed was NaN?
if( parseInt("test") == NaN ) {// do something (never gets here) }
