How can the use of different image formats, such as PNG with varying color depths, impact the color rendering and text generation functions in PHP?

Different image formats, such as PNG with varying color depths, can impact the color rendering and text generation functions in PHP by affecting the accuracy and quality of the rendered colors and text. To ensure consistent color rendering and text generation, it is important to handle different image formats appropriately and convert them to a consistent color depth if necessary.

// Example code snippet to handle different image formats and convert them to a consistent color depth
$image = imagecreatefrompng('image.png');
imagepalettetotruecolor($image); // Convert image to true color
// Use the image resource $image for color rendering and text generation functions