Top "Pixel" questions

A pixel is the smallest unit that can be represented or controlled on a display.

python -- measuring pixel brightness

How can I get a measure for a pixels brightness for a specific pixel in an image? I'm looking for …

python image pixel brightness
Painting pixels images in Java

Which method is the best way to create a pixel image with java. Say, I want to create a pixel …

java swing pixel graphics2d paintcomponent
python - opencv - convert pixel from bgr to hsv

img = cv2.imread('example.jpg') img_hsv = cv2.cvtColor(img, cv2.COLOR_BGR2HSV) # lower mask (0-10) lower_red = np.…

python opencv pixel hsv bgr
How to access pixel values of CV_32F/CV_64F Mat?

I was working on homography and whenever I try to check the values of H matrix (type CV_64F) using …

opencv pixel mat
Pixel access in OpenCV 2.2

Hi I want to use opencv to tell me the pixel values of a blank and white image so the …

image-processing opencv computer-vision pixel
Getting the pixel value of BMP file

i got a question for reading an bmp image. How can i get the pixel value(R, G, B values) …

c pixel bmp
Commonly used pixel sizes for webpages and their pros/cons

What are the most commonly used pixel sizes (primarily widths) and what are there advantages and disadvantages? How can I …

html css browser size pixel
The use of getPixels() of Android's Bitmap class and how to use it

I'm trying to do some image processing in Android. I need to get a chunk of pixel information of a …

android bitmap pixel
Bitmap width/height different after loading from Resource

1st. i'am new to Android coding :) What I do is I load an Bitmap from my res/drawable-mdpi with BitmapFactory.…

android bitmap width pixel
How to create empty/blank UIImage or CGImage and manipulate pixels on it (Xcode)?

I have following problem and only could solve it partially yet. I am working with XCode 3.2.5, developing for iOS 4+. I …

iphone xcode uiimage pixel cgimage