How to read the RGB value of a given pixel in Python?
Sep 26, 2008 · im = Image.open('image.jpg', 'r') width, height = im.size. pixel_values = list(im.getdata()) Now you have all pixel values. If it is RGB or another mode can be read by im.mode. Then you can get pixel (x, y) by: pixel_values[width*y+x] Alternatively, you can use Numpy and reshape the array: >>> pixel_values = numpy.array(pixel_values).reshape ...
How to use PyAutoGUI to detect RGB values - Stack Overflow
Nov 6, 2020 · Assuming you know the screen x and y coordinates you are wanting to get the color of you'll want to take a screenshot of the screen and inspect the color values at the appropriate location. im = pyautogui.screenshot() px = im.getpixel((x, y)) There is a wrapper that lets you get pixel information from a coordinate pair that you can use as well.
python - Get pixel's RGB using PIL - Stack Overflow
Jun 16, 2012 · Yes, this way: im = Image.open('image.gif') rgb_im = im.convert('RGB') r, g, b = rgb_im.getpixel((1, 1)) print(r, g, b) (65, 100, 137) The reason you were getting a single value before with pix[1, 1] is because GIF pixels refer to one of the 256 values in the GIF color palette. See also this SO post: Python and PIL pixel values different for ...
How to manipulate images at the pixel level in C#
Nov 5, 2016 · private bool mousePress = false; // is left mouse pressed in picture box 2. private Bitmap statueBitmap; private SolidBrush brush; private Pen pen; private Rectangle rec; private Color color; private const int pSize = 20; // pixel size. // …
windows - Getting pixel color in C++ - Stack Overflow
Jan 30, 2011 · The first parameter to GetPixel is a handle to the device context, which can be retrieved by calling the GetDC function (which is also available via <windows.h>). A basic example that loads GetPixel from the dll and prints out the color of the pixel at your current cursor position is as follows. #include<windows.h>.
c# - How to read the Color of a Screen Pixel - Stack Overflow
Sep 27, 2009 · while(!IsPixelColor(x, y, color)) { //probably best to add a sleep here so your program doesn't use too much CPU } DoAction(); EDIT 2. Here is some sample code you can modify. This code just changes the color of a label based on the current color in a given pixel. This code avoids the handle leak mentioned.
How do I get the color of a pixel at X,Y using vb.net
Dec 2, 2013 · Edit: As you are getting pixel from a bmp there is no transparency supported. so your comparing color should be cw = Color.FromArgb(0,0,0,0) Edit2 : you are reading pixed from nii you should be reading from b
What's the best way to set a single pixel in an HTML5 canvas?
Apr 14, 2017 · 233. The HTML5 Canvas has no method for explicitly setting a single pixel. It might be possible to set a pixel using a very short line, but then antialiasing and line caps might interfere. Another way might be to create a small ImageData object and using: context.putImageData(data, x, y) to put it in place.
java - How to color a pixel? - Stack Overflow
33. The class java.awt.BufferedImage has a method setRGB(int x, int y, int rgb) which sets the color of an individual pixel. Additionally, you might want to look at java.awt.Color, especially its getRGB() method, which can convert Colors into integers that you can put into the int rgb parameter of setRGB. Broken link.
python - Pygame: Draw single pixel - Stack Overflow
Apr 27, 2012 · A PixelArray pixel item can be assigned directly. The pixel can be accessed by subscription. The PixelArray locks the Surface, You have to close() it when you have changed the pixel: pixel_array = pygame.PixelArray(window_surface) pixel_array[x, y] = my_color pixel_array[start_x:end_x, start_y:end_y] = my_color pixel_array.close()