Here’s a step-by-step outline of the process for cropping yourself out of photos and using them for marketing materials such as websites and brochures:

1.) Photography: Start by taking high-resolution photos of yourself against a contrasting background. Make sure the lighting is good and the focus is sharp to ensure high-quality results after cropping.
Ideally, have a professional photographer take them so the lighting and image quality is excellent. Not to sound crude but the adage “garbage in, garbage out” applies here (In computer science, garbage in, garbage out is the concept that flawed, or nonsense input data produces nonsense output.)
This should be done in a studio so the background contrasts your hair and clothing. Also that the lighting is sharp and clean. See examples of studio shots here.

2.) Image Editing Apps: Once you have the photos, you can use image editing apps or software to crop yourself out of the background.
Fine-tune the Crop: After cutting out yourself from the background, you may need to fine-tune the crop to make it look natural. You can use tools like the eraser or refine edge tool to clean up any rough edges and blend the subject seamlessly with the new background.
There are many options available, such as Adobe Photoshop, GIMP, or Canva. These tools allow you to select and cut out the subject (in this case, yourself) from the background using various tools like the lasso tool or the magic wand tool.
Admittedly some skill is required for this so an option is to have the photographer provide you with the image already cropped out on a transparent background.
AI is here and provides excellent results. If you wish to take the time to learn consider Adobe’s Firefly and Midjourney
3.) Save in Appropriate Formats: Once you are satisfied with the cropped image, save it in an appropriate file format. For websites, you can use JPEG or PNG formats (PNG is the common transparent-background format), which are common web-friendly formats.
By following these steps, you can effectively crop yourself out of photos and use them for marketing materials like websites and brochures. Remember to always consider the quality and consistency of your images to create visually appealing and professional-looking marketing materials.