Https://imagecolorizer.com/ is able to reduce bluriness on old photos, and it has some other features. Source: about 1 year ago

Use photo accurate to year but use https://imagecolorizer.com/ for black and white photos. Source: over 1 year ago

For the photos check out a free service like this https://imagecolorizer.com/. Source: almost 2 years ago

Just look up black and white image colorizer on google and there's multiple free websites you can try. I used https://imagecolorizer.com/. Source: about 2 years ago

I ran these through imagecolorizer.com's free tool, and I gotta say, I'm pretty impressed with the results, considering it's automatic and free:. Source: over 2 years ago

We use imgproxy which does 2->4 and all you need to do is change the URL on your site. Source: 6 months ago

You should also be using a variety of formats. Unless you need support for old browsers and transparency in the same image, don't use PNG. Stick with jpg, webp and avif. You can setup something like imgproxy to automatically resize and change format of images, or even fit into the space requirements you set. Source: about 1 year ago

If you look for something universal, you can try API for image optimization (e.g. imgproxy). However, the mechanism is different from build-time optimization. Source: about 1 year ago

Now signup for Vultr and make a $5 instance and put imgproxy on it. Setup a subdomain for images in Cloudflare and point it to the imgproxy IP. Source: over 1 year ago

If you need optimization done en masse on the website, I would recommend https://imgproxy.net/. Source: over 1 year ago