Filter drag意思

"Filter drag" is a term used in the context of computer graphics and image processing, specifically in reference to the application of filters to images. A filter, in this context, refers to a mathematical operation or algorithm that is applied to an image to modify its appearance or extract certain features.

The term "drag" in this phrase refers to a computational cost or a delay in processing time. When a filter is applied to an image, it can require a significant amount of computational power, especially if the filter is complex or if the image is large. This can lead to a noticeable delay in the processing time, which is referred to as "filter drag."

In summary, "filter drag" is the time it takes for a computer to process an image using a filter, which can be significant depending on the complexity of the filter and the size of the image.