pixel Questions
3
What I'm trying to do is to test if a pixel is blue or not.
For example: The blue color is in RGB defined as rgb(0,0,255). Typical color depths are 8 bit (256 colours), 16 bit (about 65 thousand),...
3
Solved
This is in an extension of TextView. getTextSize() and setTextSize() are not overridden, I do not extend those methods. Programming in 1.6, API level 4.
The loop in this code causes size to ...
Ginsberg asked 17/2, 2011 at 17:28
3
I'm currently using this technique to get the color of a pixel in a UIimage. (on Ios)
- (UIColor*) getPixelColorAtLocation:(CGPoint)point {
UIColor* color = nil;
CGImageRef inImage = self.image.CG...
Bebop asked 18/5, 2012 at 19:19
5
I have some code that generates particles at random locations, and moving in random directions and speed.
Each iteration through a loop, I move all the particles, and call repaint on my jpanel.
F...
Execratory asked 30/11, 2012 at 3:56
2
Problem :
I want to make prototype for cleaning windows (I mean cleaning dirty windows) in unity.
I was searching about this subject and finding that I can change pixel by Texture2D.SetPixel().
...
Buchenwald asked 19/4, 2015 at 16:16
2
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I'm working on a NES emulator right now and I'm having trouble figuring out how to render the pixels. I am using a 3 dimensional array to hold the RGB value of each pixel. The array definition look...
2
Solved
I have an application that uses OpenGL and GLUT to show some stuff on the screen. I'd like to access the colors displayed "pixel by pixel" but I'm having trouble comprehending the methods provided....
1
Solved
I have many apps that rely on rgb value checking based on tapped pixels. If I tap a pixel that returns 128/128/138 then it opens up this particular thing from an array. With 9.3 this no longer work...
Routinize asked 25/3, 2016 at 19:9
1
Solved
I have this image in OpenCV imgColorPanel = imread("newGUI.png", CV_LOAD_IMAGE_COLOR);:
When I load it in with grey scale imgColorPanel = imread("newGUI.png", CV_LOAD_IMAGE_GRAYSCALE); it looks ...
Me asked 25/3, 2016 at 18:7
1
Solved
Say, for an ImageButton on screen A (240X320: ldpi) and screen B (720X1280: xhdpi), is it recommended to manually change the dp (layout-width and height) size of it in each unique layout resource f...
1
Solved
I'm trying to draw pixels of image into graphics context to iterate and print colorspace information values of an image. I've managed to buffer all the raw pixel values. But my attempts draw bitmap...
4
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In Unity, when writing shaders,
is it possible for the shader itself to "know" what the screen resolution is, and indeed for the shader to control single physical pixels?
I'm thinking only of the...
Pigg asked 22/1, 2016 at 17:3
2
Solved
I have 2 pictures which I want to compare, if pixel color is the same to save it.
I detect the color of the pixel by this UIImage extension function:
func getPixelColor(pos: CGPoint) -> ??? {
...
4
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I will calculate width in some element from percent to pixel so I will minus -10px via using LESS and calc(). It´s possible?
div {
span {
width:calc(100% - 10px);
}
}
I using CSS3 calc() so i...
2
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this may be a simple question, but i wonder why pixel values can have float values? I'm tracking a target and get the mass center with contours() and moments() method and if i want i can get float ...
Boche asked 13/1, 2016 at 15:58
3
I am making a function using C++ and OpenCV that will detect the color of a pixel in an image, determine what color range it is in, and replace it with a generic color. For example, green could ran...
2
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How can I split an image into multiple sub images? Like, would I have to read the pixels and convert it to an image somehow?
For example:
If an image's dimension is 100px (width) and 180px (heigh...
4
OK, here's a goal I've been looking for a while.
As it's known, most advertising and analytics companies use a so called "pixel" code in order to track websites views, transactions, conversion et...
Britteny asked 1/2, 2013 at 15:10
1
Solved
Have a Canvas. Draw something (in my case, several red lines).
I want to quite literally copy the contents of this canvas to another. This is what I do:
SnapshotParameters params = new Snapshot...
3
Todays displays have a quite huge range in size and resolution. For example, my 34.5cm × 19.5cm display (resulting in a diagonal of 39.6cm or 15.6") has 1366 × 768 pixels, whereas the MacBook Pro (...
Antrorse asked 19/11, 2015 at 6:43
4
Solved
I would like to know a way to generate a single pixel in JavaScript converting it to base64. The ideal function would be:
function createPixel(hexColor, opacity){
//...Calculate
return base64Dat...
Chrysalis asked 30/4, 2011 at 23:12
1
l was just curious if there are any techniques to record email opens other than using a hosted pixel/image.
I've read a few places that facebook uses bgsound src tag's to do this, but it doesn't ...
1
If I load and display an image, for example
c = imread('cameraman.tif');
imshow(c)
then in the plot window, under the image itself, there are two numbers indicating the current cursor position, ...
1
I have various instances in my design that call for
border-right: 1.5px solid black;
border-bottom: 1.5px solid black;
etc...
I also have design that needs thinner lines: at 1px.
However, it...
5
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My question is if I have a Lion image just I want to change the color of the lion alone not the background color. For that I referred this SO question but it turns the color of whole image. Moreove...
Gunfight asked 8/11, 2011 at 6:18
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