Final answer:
When you edit a raster image, the picture element that is changed is the pixel.
Step-by-step explanation:
When you edit a raster image, the picture element that is changed is the pixel.
A raster image is made up of a grid of pixels, which are small dots of color. Each pixel represents a specific color and when you edit a raster image, you can change the color of individual pixels to alter the overall appearance of the image.
For example, if you want to change the color of a specific part of the image, you can edit the pixels in that area to achieve the desired color. By manipulating the pixels, you can adjust the brightness, contrast, color, and other attributes of the image.