Flex :: Comparing Bitmap Data In AS3 Pixel For Pixel
Mar 30, 2010
I am looking for a fairly simple image comparison method in AS3. I have taken an image from a web cam (with no subject) passed it in to bitmap data, then a second image is taken (this time with a subject) to compare this data, from these two images I would like to create a mask from the pixels that match on both bitmaps. I have been scratching my head for a while, and I am not really making any progress. Could any one point me in the right direction for pixel comparison method, something like getPixel32()
View 2 Replies
Similar Posts:
Nov 23, 2009
I have a 100x100px image. I want to get 1 pixel vertical line from x- 1 to 100. How can I do that?
View 7 Replies
Mar 24, 2011
i've filled a circle shape with the bitmap data of a bitmap asset.i need to rotate the circle from the center, so i added the bitmap to the center of the circle and used a matrix transformation to shift the bitmapdata upward and leftward so it appears centered.
now i'm trying to read the bitmap data with getPixel() but the return value is off since it is returning the untransformed position of the bitmap data instead of the visible transformed bitmapdata.
Bitmap(Sprite(evt.currentTarget).getChildAt(0)).bitmapData.getPixel(evt.localX, evt.localY)
how can i get an accurate reading of the pixel data from a bitmap with a matrix transformation? updated with code. assume the redCircleData in my example is more colorful and something worth retrieving pixel data.
var redCircleData:Sprite = new Sprite();
redCircleData.graphics.beginFill(0xFF0000, 1.0);
redCircleData.graphics.drawCircle(0, 0, 100);[code]............
View 2 Replies
Mar 11, 2011
Is it possible to iterate each pixel of a bitmap image? Eventually what I'm trying to achieve is that I need to get the coordinate values of each pixel of a bitmap image and change the color of those pixels according to their coordinate values. As I see it, I need to use the getPixels() method but I still did not understand exactly what I should do.
View 3 Replies
May 31, 2010
Can I check if a pixel is transparent or not in a bitmap?
I want to count the nr of transparent pixels and nontransparent pixels.
View 0 Replies
Nov 21, 2010
I'm making a game where the player moves around a map, where the player can walk and where they can't is decided by the color of the pixel they are trying to move onto, which I get using the Bitmap.getPixel method.
What I'd like to do though is when the map image is loaded process it into a sprite or something which I can then use the DisplayObject.hitTest methods on. So I have an array of colors whcih the user can walk on, is there way I could go through each pixel and build something that would let me do that?
View 4 Replies
Oct 5, 2011
I have a bitmap with many colors on it. When the user clicks each color needs to trigger a different method. However, I have no idea how to check the color value of the selected bitmap. I can create a new sprite and check the value of that fine through bitmapdata.getpixel() but when I need to actually check the actual bitmap I cannot get it to work.
View 2 Replies
Mar 31, 2007
I have been desperately searching for a way to do pixel perfect collisions, and for someone to explain it to me in detail. explain the code in the .fla file, posted by the Canadian in the frequently asked questions thread on bitmapData hit testing:
[Code]...
after looking through the help files, i must admit they are terribly vague. All you are doing is checking if _alpha is above a certain amount. With movieClips you would use 0->100 but with this hittest you have to use 0->255 (0x00->0xFF)so an _alpha of 50 would correspond to approx 128 (0x80). Nearly all the time you could just use 1 as a hittest parameter so you are checking for any hit at all but maybe you have a shadow in a mc layer and you do not want to check a hit. This is when you might be able to use your threshold parameter. In other words, the hit test will only react to parts of the bitmap which have a greater or equal alpha than the alpha threshold, mostly useful for a shadow.
View 1 Replies
Dec 14, 2008
I'm implementing a frame class that builds a graphical frame around children using 9 bitmaps (4 corners and 5 middle pieces).The frame extends sprite, and the 9 frame bitmaps are attached as children. They are repositioned as necessary to encompass any other children on the sprite.
This works fine, normally, but as soon as I rotate or scale the frame, the children split apart, showing what appears to be a one pixel or partial pixel gap between the pieces.
I've tried setting pixelSnapping = PixelSnapping.NEVER on the 9 bitmaps. I've tried turning smoothing=true. The children bitmaps are always positioned at integer x, y's, never fractional. I've tried setting the scale of the children bitmap to 1.01 and PixelSnapping to AUTO. None of it works.
View 4 Replies
Jun 16, 2010
Using Actionscript 3 is there a way to search one bitmap for the coordinates matching pixels of another bitmap?
[URL]
Somehow you would have to loop through the bigger bitmap to find and the the pixel range that matches and return those coordinates. For example the Bitmap with the "E" is 250 pixels over and 14 pixels down in the bigger bitmap.
View 2 Replies
Oct 12, 2011
I load a bitmap to the stage, it's a GIF and set to lossless compression. I have ensured its coordinates are integers and have not allowed smoothing (smoothing somewhat fixes the issue but reduces quality of the image).The problem is the image appears to shift one pixel to the left and add that pixel on to the right side meaning one side has no border and the other a double border.The original bitmap does not have this issue, and there is no transparency .etc in the image.
View 1 Replies
Jun 24, 2009
I wondering if with flash would be able to load in an external jpg file and then export the pixel data into a php application to rebuild the image?My concern is when an application loads an external resource it is just that, external and not local and therefore when I come to grab the pixel data will it grab the external resource in this case the image I've placed inside a movie clip?
View 3 Replies
Apr 9, 2012
I'm using FFmpeg to do some video analysis on my PC but I'd like to see if I can do something similar in the browser using Flash.
Does Flash offer any way to take a video file as input, crack it open, and get access to the pixel data?
View 1 Replies
Jan 17, 2010
Its an mx:Text object. (The Text object is actually being used as a mask so don't know if that's the problem.) If underline is set with the <u> tag in Text.htmlText, or Text.textField.setTextFormat, the underline thickness is always just one pixel which is not acceptable. (There are other problems with <u> so I'm limited to using setTextFormat currently.)
Can the thickness of an underline be set through CSS? (textField.styleSheet, etc.)
I may have another problem as I already use setTextFormat extensively, and the documentation says you can't use textField.setTextFormat if you use textField.setStyleSheet.
I primarily need the underline to simulate correctly the look for an anchor tag.
View 2 Replies
Apr 15, 2010
I have a Width and Height parametr. I have been given an array of colors in such format: [r, g, b, a, r, g, b, a, r, g, b, a... etc] Data can be acsessed by something like this
for(var y = 0; y < height; y++)
{
for(var x = 0; x < width; x++)
{
[Code].....
I want to paint that data on some sprite. How to do such thing?
BTW: I use Flash Builder for mxml+actionscript coding. So if it is easy for you you can give example using MXML (not todraw on some sprite but on some MXML component).
View 1 Replies
Jul 29, 2011
I'm having trouble with this code
var imageMap:ImageSnapshot= ImageSnapshot.captureImage(object);
var pixelValue:uint = imageMap.bitmapData.getPixel(x, y);
View 1 Replies
Mar 27, 2010
Where I can find a good chroma keying pixel bender code example. Or How to write such a code in pixel bender. Or a create pixel bender tutorial to create a chroma keying filter. How to get it in flex 3.
View 2 Replies
Dec 21, 2010
As textWidth property is no more accessible in spark textinput how we can get that property ?
View 1 Replies
Nov 12, 2009
How to stretch out the movie clip to twice its width and height after applying some Pixel Bender filter? I have some object with video on it (for ex 512 by 512) I apply a Pixel Bender Filter on it. Now I want to stretch the result (for ex to 1024 by 1024). How to stretch it?So my point is 1) Render the result of effect2) Stretch out the result
View 2 Replies
Dec 8, 2011
I've tried this simpler filter with same Air code as below:
<languageVersion : 1.0;>
kernel NewFilter
< namespace : "Your Namespace";
vendor : "Your Vendor";
[code]....
Changing HUE_MAX slider in app (binded to MAX_RANGE parameter of filter), it doesn't filter out HUE values smoothly, but instead thresholds at HUE_MAX=59.9, where at lower values looks like no filter is applyed, and at HUE_MAX=299.9 where between 60 and 299.9 looks like this: [URL]
View 3 Replies
Dec 13, 2010
i am writing a program that need to load photoshowever, there is limitation in flex that users cannot load photos with pixel above 4069 x 4069 into a bitmapdata.how can i check photos pixel before running to error? since some pictures are big nowadays, i would llike to check the user`s system memory and free harddisk space. See if the computer have enough space to load the photos.
View 2 Replies
Jul 14, 2009
I want to take the colour of a certain pixel in a movieclip and make the colour of another movieclip that colour. How do I do that?
View 1 Replies
Oct 14, 2011
I have a label and I need the pixel value of the end of the text of the label. I will later later need to set a icon in fronto f the end of the text. I tried label id.x and y but it seems not working. Also for some reason when I do something like <label id>.x+5 it gives me a implicit coercion error...not sure why?
View 2 Replies
Jan 25, 2005
I was wondering what the code to get something to go to a whole pixel value is. I'm using pixel fonts inside of a movieclip and when the movie clip is moved through actionscript and lands in a different spot with easing, the fonts look bad because i suspect that they are no longer on pixel values.
View 9 Replies
May 31, 2007
I made a menu by attaching movieclips and specifying the text as a variabel. the main movieclip is called meny, then I attach the movieclips txt and pil (pil is norwegian for arrow) inside it, and specify the y pos. This works on my mac, but when I see it on a PC the text is down by aprox. 5-8 pixels.
[Code]....
View 6 Replies
May 19, 2010
How do I programatically get the pixel dimensions of my SWF. I tried using stage.width and stage.height, but this seems to be a tight bounding box on all the objects in the video, not the actual viewing area. I also want these pixel dimensions to be accurate as javascript dynamically resizes this SWF.
View 2 Replies
Jun 18, 2009
I have a Flash CS3 movie (AS2) wich uses pixel fonts. The text is within a movie clip that uses the tween class to move with ease. Whe I publish it, everything OK, the text looks very crispy. But I want this movie to be centered in the browser window so I've used the tags <center> </center> in the html file as you can see below. When you play the movie it plays in the center but... with IE8 the text is blurred if the browser window is maximize, but crispy if you minimize the window!! With other browsers it works well with all windows sizes, IE7, Firefox, Safari...
Here is an exemple: [URL]
Code:
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="es" lang="es">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>test2</title>
[Code].....
View 2 Replies
Aug 4, 2009
I am trying to get the alpha values in the rect of one (playball_mc) clip inside another bigger clip (dst_mc). The clip dst_mc has a bitmap attatched and also has a shaderFilter that calculates the alpha values.ut I only get alpha values of 0xFF.Does anyone know what I am doing wrong or where the alpha value gets lost?
CODE:var rSource:Rectangle=new Rectangle(playball_mc.x,playball_mc.y,80,80)
dst_bmp.draw(dst_mc);bmd1.copyPixels( dst_bmp , rSource, new Point(0,0) );
for
[code]........
View 9 Replies
Oct 28, 2010
Grab the color of a vector item at a specific pixel without converting it to a bitmap object and then using getPixel?
View 8 Replies
Nov 21, 2010
add a 1 pixel border around the entire stage so it appears in swf?
View 3 Replies