Hello,

First you create an HTML computed field and a text field which will hold the url. Then you will compute the HTML field value as

let the field holding the url be image_url
let the computed html field be image_display

image_display = fields.HTML(copute="display_image")
@api.depends('image_url')
def display_image(self):
    for record in self:
        record.image_display = "&lt ; img src='%s' width='100' &gt ;" % record.image_url