Bitmap image overlay is a sort of display mode desired in multi-image display system.

位图图象的叠映是多图象显示系统要求的一种图象显示方式。

youdao

It has referred to the idea of image overlay processing, at the same time, has considered the randomness of noise.

此方法借鉴了多幅图像叠加处理的思想，同时考虑到了噪声的随机性。

youdao

Systems that tap a phone's camera and GPS to overlay information on an image of nearby surroundings, also called "augmented reality, " is also in development, officials said.

CNN: U.S. Army may soon equip troops with smartphones

You can continue to overlay more graduated filters on the image.

FORBES: Lightroom 101: Using Graduated Filters for Different Types of Lighting

As a bonus tip for the advanced user, you can also open up PhotoShop or GiMP and overlay the original over the mosaic and alpha it out a bit to make the image pop a some more.

ENGADGET: How-To: Make your own photo mosaics