Image watermark synthesis method and device, equipment, medium and product

The invention relates to an image watermark synthesis method and device, equipment, a medium and a product, and the method comprises the steps: calling a camera unit to obtain on-site image data, and converting the on-site image data into a first image texture in a first texture space; after the target watermark is converted into a watermark texture in a first image texture in a first texture space, the first image texture is rendered into a graphical user interface to present a watermark-containing image, and watermark information of the target watermark is displayed in the watermark-containing image; and in response to an image export instruction, synthesizing the watermark texture of the target watermark into the second image texture of the field image data in a second texture space, and exporting as a field image file. Corresponding watermark textures are generated in different texture spaces for field image data shot by the camera unit, different requirements of watermark previewing and exporting are mat