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 RepliesI 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 RepliesI 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 RepliesI have a 100x100px image. I want to get 1 pixel vertical line from x- 1 to 100. How can I do that?
View 7 RepliesUse the flash CS4 tool's on a bitmap image after tracing the bitmap image and applying my settings?
View 10 RepliesCan I check if a pixel is transparent or not in a bitmap?
I want to count the nr of transparent pixels and nontransparent pixels.
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?
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 RepliesI 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.
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.
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.
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]............
I am trying to set a constant hue value for entire image with using ColorMatrix. My goal is to make entire image look with same color without loosing brightness of any area. I found a way to shift the hue values of an image by using ColorMatrix but i couldn't find any way to set same hue value for all pixels. I can do it with iterating every pixel of image but this approach is too slow. I am not sure if it is possible to do it with ColorMatrix and i am open to possible solutions other than ColorMatrix approach.I can do this with iterating pixels but not with ColorMatrix.I am trying to do this on Android but i believe the question is not directly related to the android since ColorMatrix approach is common on other platforms like Flash, C# etc.
View 5 RepliesI came upon a really nice class that loads a pixel bender filter and applies it to an image, but so far havent really managed to call it to from within a different flash application.
[Code]...
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).
I went to [URL] to turn a GIF image into arrays that represent each pixel. How do I take the code that it spits back at me and display it in Flash MX?
View 2 RepliesI am writing a program that need to load photos. However, 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 like to check the user's system memory and free harddisk space. See if the computer have enough space to load the photos.
View 5 RepliesI am having a rather odd issue with scaling down large images. When scaled down quite a bit, the images' right most edge of pixels stretches across the area that should just be the image. All I am doing, is loading an image using the loader class, and scaling it down as a thumbnail. One very odd thing about this issue, is that if I move the parent object x position to the left, it starts to correct itself.
View 9 RepliesI have a fairly decent grasp of flash, but not so much of the action script side of things. I need to make a banner similar to the one featured here:[URL]..
As you can see, the image is jerky and juddery when it scales down. From what I can find out, I think I need to use the pixel snapping feature to help make it a smoother fade, but I haven't got a clue how to write the actionscript for it, or where to put the actionscript. Can anyone give me any pointers?
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 RepliesOkay, I know this is a stupid question but, if you bring in a jpg or png image and either convert it to a graphic or a movie clip, or just leave it as an image, is there a way to distort the image other than scaling, rotating and skewing it. For example, I want to change the perspective of an image the way I do in photoshop.Let's say the image is a house, in photoshop, you can take the house and make it look like a trapezoid shape, you know, wider at the bottom than at the top Is there a way to do this using flash tools? Envelope distorting, if you break the image apart doesn't really work.
View 1 RepliesI'm trying to cut up a bitmap image into pieces, and then tween each piece away sequentially. Cutting up the pieces and placing those pieces in an array is where I'm at. But to tween each piece on a timer is where I'm stuck; here's the code:
package
{
import flash.display.*;
[code]....
i can't download more then one image from url
function processXML(e:ResultEvent):void
{
myXML = e.result as XML;
[Code].....
I need to create an Image control from a Bitmap because I have an ItemRedender to use in a List control.
I'm trying to show a list of images (Bitmaps) in a List control and I couldn't by now.
I'm wondering if there is some library (or maybe tutorial?) which can produce Instagram-like color tweaks for Bitmap/BitmapData objects in AS3. Color Matrix/ColorMatrixFilter will not be probably able to achieve such as results or yes?
View 1 RepliesI am trying to replace a movie clip image with a bitmap image and now the code to fire the image(missile) doesn't work. I get these errors:1119: Access of possibly undefined property dx through a reference with static type flash.display:Bitmap.1119: Access of possibly undefined property dy through a reference with static type flash.display:Bitmap
package {
import flash.display.MovieClip;
import flash.events.Event;
[code]....
I'm loading a list of urls of pics from an fql query, then loading those urls with the loader class using this function:_loc is a MovieClip that holds the picture,[code]In onMyPictureLoaded I would like to get the bitmapdata out of loader.content and scale the image (smooth it too) that way, and then reattach it to the _obj MovieClip, but I'm having trouble reattaching that new bitmap to the object.It seems the problem is more to do with events and not having the ability to pass information (_loc, for example) from:loader.contentLoaderInfo.addEventListener(Event.CO MPLETE,onMyPictureLoaded); to the onMyPictureLoaded function.
View 11 RepliesThe basic concept: I want to at runtime overlay (or paste or whatever) one bitmap image asset onto another. The original image asset is a texture on a 3d sphere.Example:3D Sphere with earth texture applied to it. Put a cloud on the earth texture and have cloud move along the earth.
Caveats:Can't use any composite materials because I take a serious perf hit. Want to try working only with bitmaps to see if it is faster.I've gotten this far but don't know how to fill rectangle with jpeg file and certainly have no idea where to go from here..earthBitmap= new BitmapData( 256, 256, true); fillRect will only do a color ... I need what fills a rect with jpeg image and how to edit a bitmap on the fly.
I have an masked image that is externally loaded onto my stage that the user can drag and position.I then need to be able to record or save where and how the user has positioned the image by either -taking a bitmap copy of where the user has positioned the image (my first and easiest thought of how to do this) -or is it possible to get X and Y co ordinates of where they have positioned it I have a movie currently set up but when the user clicks 'save and continue' it takes a copy of the original position of the image - not from where you have last dragged it to?Full code and attached fla file below
Code:
stop();
//--------------
// Loader
//--------------
var imageP1:Loader = new Loader();
[code]....
How can I use a bitmap tile for texturing a vectorial image ?
View 2 Replies