 
 <prompt> ```Which one dey easier for people to notice: changes in luminance or changes in color? Given the previous question, write a context wey contain the answer. E fit be 1 - 20 sentences. Context:``` <response>: ```Lossy data compression na di opposite of lossless data compression. For dis kain schemes, e dey okay make some information loss happen. If we drop di nonessential detail from di data source, e fit save storage space. Dem design lossy data compression schemes based on research on how people dey perceive di data wey dey question. For example, di human eye dey more sensitive to small small changes for brightness pass how e dey to changes for color. JPEG image compression dey work by rounding off di nonessential bits of information. E get trade-off between preserving information and reducing size. Plenty popular compression formats dey take advantage of dis perceptual differences, including di ones wey dem use for music files, images, and video.``` 