Questions tagged [pixel]

-1 votes
0 replies
How to model a genetic algorithm to select 5 pixel with which to distinguish between 26 16x16 pixel images? [closed]
I am trying to implement a genetic algorithm, which takes a dataset of images (16x16 pixels, each either white or black) of the English alphabet...
0 votes
0 replies
Avoid pixel overflow on an AnimatedContainer
I've this AnimatedContainer that starts with a rounded shape and than changing state it becomes a rectangle. At first it has just a centered icon...
-4 votes
1 replies
Javascript how to get pixel colour from image data
How can I determine what colour an image is from it's data? I used Sharp to crop a single pixel to the buffer a single pixel out: img.onload = r...
asked 1 month ago
0 votes
1 replies
How do I get a pixel color from an imageView using Kotlin?
I'm trying to get the color of a pixel from my imageView by hovering over it, but my application keeps crashing. Ive tried using code from stack...
asked 1 month ago
0 votes
0 replies
Opencv4android converting white pixelcluster to centeret single line of dots
I'm trying to use the android phone camera as a 3dscanner, with help from a lasercross. i'm using OpenCV to filter out all other colors except th...
asked 1 month ago
0 votes
1 replies
How to draw a pixel through video memory using C?
Problem: I have followed the tutorial at https://wiki.osdev.org/Drawing_In_Protected_Mode and encountered a problem drawing a pixel using the gi...
asked 1 month ago
0 votes
0 replies
How can I fill an area with color in android?
I'm creating a drawing game, and I wanted to integrate a filling function to it. I tried to do a recursive function which gets the pixel positio...
asked 1 month ago
0 votes
0 replies
Does View.getPixel return different values dependent on brightness?
Title says it all. I have an application where I need to get the pixel color at the location I tap on the screen and I can tap continuously on t...
asked 2 months ago
0 votes
0 replies
Comparing Bitmaps having pixel differences
I have a sample image, that is 60x60 in size and I'm trying to locate that sample on a bigger, screenshot image (1920x1080 in size). My problem...
asked 2 months ago
0 votes
0 replies
Comparing Bitmaps having pixel differences
I have a sample image, that is 60x60 in size and I'm trying to locate that sample on a bigger, screenshot image (1920x1080 in size). My problem...
asked 2 months ago
-2 votes
1 replies
How to convert pixel locations to gps points?
I have a Geo-tagged aerial image, that is it contains the latitude, longitude and altitude at which the image was captured. I am using this image...
asked 3 months ago
0 votes
1 replies
Storing the color values of each pixel into a 2D array
Is there a way to store the color of the pixel in the row and the column of an image into a 2D array. I currently have this for (int i = 0; i...
0 votes
0 replies
Faster way to calculate overlap between ROI and bitmask
Using Matlab 2018. I have a set of images in which a large number of ROI's are drawn. For the picture there is also a bitmask defined. I want to...
asked 2 months ago
1 votes
1 replies
How to use the ImageGrab.grab().load() function or any other function to get pixel updates?
I have been trying to check if a pixel on the screen is changing. What do I need to do? I have surfed the internet for a long time with no succe...
0 votes
0 replies
How can I get pixel size in millimetres using camera calibration with checkerboard images in Matlab?
I am using camera calibration APP in Matlab to get the camera information I am wondering if it is possible to get the size of the pixels in milli...
asked 3 months ago
0 votes
0 replies
How can I get pixel size in millimetres using camera calibration with checkerboard images in Matlab?
I am using camera calibration APP in Matlab to get the camera information I am wondering if it is possible to get the size of the pixels in milli...
asked 3 months ago
0 votes
1 replies
Trying to get Bulma pixel detail: Tabs with bottom border same width as text
I am using Bulma.io for some frontend I am building and wanted to go to pixel-detail level. I was wondering if there is some scss edit for the...
asked 3 months ago
0 votes
2 replies
Converting cm to pixel, formula for conversion?
I'm getting cm as an input value and I want to convert the integer to pixel (doesn't need to be absolutely precise). Is there a formula to do thi...
asked 2 months ago
0 votes
0 replies
Visual defects with perceptual loss in Super Resolution GAN
I have a problem with the perceptual loss and Super Resolution in GAN:s. Currently I normalize (before) and denormalize (after) the images like t...
0 votes
0 replies
Found this code on a public institution's website and have some concerns. Seeking opinions
I found this code on a clients website, loaded the URL which returned the attached script. This appears to me (and I could be wrong) to be some s...
asked 2 months ago
1 votes
0 replies
Applying masks to transfer pixel values to new images with Python PIL
new to PIL and image processing with Python, probably just missing a basic function. I am trying to apply multiple masks to one UHD image to cre...
0 votes
1 replies
How to change the image of an individual pixel in UIImageView
I have a UIImage, I want to change image of its particular pixel, say 100 x 100 pixel. How can I do this? 0 If my answer was useful, plea...
asked 2 months ago
0 votes
1 replies
If you have to use `new Image` to render an image in WebGL
The examples I've seen for WebGL drawing images all use the DOM Image object: var image = new Image(); image.src = "resources/f-texture.png"; im...
asked 3 months ago
1 votes
1 replies
How to extract the bit field from pixels
I have an image from a satellite with pixels values between 0 and 255. This image contains several tests of information No/Yes (0/1) storage in a...
asked 3 months ago
-1 votes
1 replies
how to set width and height of a UIVIew in pixels?
I am working on an ObjectiveC app in which I need to set the width and height of a uiview in pixels and than scale that uiview equal to the devic...
asked 3 months ago