The specific image on the image is like an image in the imagination of the mind, they are transferred from the real object through the eyes. Abstract images also exist in imagination, but explanation and communication are not easy. When people experience emotions, dreams, and pure conscious state, the two images interact in different ways. Despite the interaction, the two images are not merged as an index between the two or are merged into the third image type. Specific images change from time to time dramatically.
Let's call the first image (a rectangle with a red circle inside) Image A 2nd image - blue rectangle is image B, 3rd image is result image. In the context of PorterDuff composition, image A is a target image that applies various colors called sources (image B). To obtain the resulting image, PorterDuff first computes the alpha of each pixel, which determines its visibility. 1 Alpha means that it is displayed completely, 0 means that it is not displayed at all and the value in between is displayed partly. Once you know the visible part, you can calculate the color. This calculation determines a different PorterDuff.Mode.
What is an image? The image is just a visual configuration. In the most abstract way, it can be anything you see. Image is the same semantic system as document system and game system. Image - fragments of visual meaning - please pay complex and extreme attention with a long history. And the "written" image in visual language is as dark as the other images. A beautiful image is not easy to define, but for me, a beautiful image captures a specific human being that is difficult to express. Words it may be a heavyweight expression, or somebody's body language. It can be a symbolic contrast between ideas. It is a composition of the streets and signs of the city, the complicated interwoven of dense crowds, or the view of a quiet lake deep inside the country. It may be a strange thing of an empty petrol station in the evening and it may be the energy of preaching the crowded gospel. You can make it more abstract, such as an interesting visual pattern or an attractive color sense.
You might want to know what the focal point of the hidden image is. In addition to using smart services, there is a more attractive usage than digital rights. Copyright images can be hidden in images. If the image is illegally stolen, the original author can disclose the copyright. It is difficult to steal digital media and avoid it using a system that is difficult to detect and delete.