function processImage(originalImg, targetFormat = 'jpeg', quality = 0.92) {
const canvas = document.createElement('canvas');
canvas.width = originalImg.width || originalImg.naturalWidth;
canvas.height = originalImg.height || originalImg.naturalHeight;
const ctx = canvas.getContext('2d');
// Normalize target format to proper MIME type
let mimeType = String(targetFormat).toLowerCase().trim();
if (!mimeType.startsWith('image/')) {
mimeType = 'image/' + mimeType;
}
if (mimeType === 'image/jpg') {
mimeType = 'image/jpeg';
}
// If converting to JPEG, fill a white background to prevent transparent areas from turning black
if (mimeType === 'image/jpeg') {
ctx.fillStyle = '#ffffff';
ctx.fillRect(0, 0, canvas.width, canvas.height);
}
// Draw the original image onto the canvas
ctx.drawImage(originalImg, 0, 0);
// Create and return the new converted Image
const convertedImg = new Image();
const parsedQuality = parseFloat(quality);
convertedImg.src = canvas.toDataURL(mimeType, isNaN(parsedQuality) ? 0.92 : parsedQuality);
return convertedImg;
}The Standard Image Converter is a utility designed to change the file format of an image to various supported types, such as JPEG. It allows for control over the output quality, making it useful for optimizing image file sizes. This tool is ideal for users who need to convert images for specific web requirements, reduce storage space by adjusting compression, or ensure compatibility across different platforms and software.