Just ChatGPT answers:
“Why is the outline of an object considered the object but a blob of color in the color of the object is not usually considered the object?”
The outline of an object is often considered the object because it provides a clear boundary or border that separates the object from its surroundings. Our brains use these boundaries as a way to distinguish objects from their background and to recognize them as separate entities. When we see the outline of an object, our brains use this information to quickly identify what the object is and to differentiate it from other objects in the environment.
On the other hand, a blob of color in the color of the object may not be immediately recognized as the object itself because it lacks a clear boundary or border that separates it from its surroundings. Our brains are wired to recognize edges and boundaries, and so a solid block of color without clear edges can be more difficult to distinguish as a separate object.
In addition, our perception of color is influenced by factors such as lighting, shading, and context, which can further complicate our ability to recognize a color blob as the object itself. For example, a red circle on a green background may be more easily recognized as an apple than a red circle on a white background, even though the color of the circle is the same in both cases.
Overall, the distinction between an object’s outline and its color is an important aspect of how our brains process visual information and recognize objects in our environment.