image-grayscale

name	image-grayscale
description	Use this skill to convert RGB images to grayscale. It provides methods using common libraries like OpenCV or PIL.

Image Grayscale Conversion Skill

This skill provides instructions for converting RGB images to grayscale.

Using OpenCV (Python)

If OpenCV is available, use the following code:

import cv2

def convert_to_grayscale(image_path):
    img = cv2.imread(image_path)
    gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
    cv2.imwrite(image_path, gray) # Overwrite original

Using PIL (Python)

If PIL (Pillow) is available:

from PIL import Image

def convert_to_grayscale(image_path):
    img = Image.open(image_path).convert('L')
    img.save(image_path) # Overwrite original

Using ImageMagick (CLI)

If ImageMagick is available:

mogrify -colorspace gray image.png

Verification

Confirm the image is grayscale by checking its mode or channels.