jpeg字节数组和位图字节数组之间的区别

Question

I am doing some image processing in C# and need help understand the differences between the raw data of different image formats.

I am capturing a 640x480, 30 frames a second RGB stream from a camera and I want to write this to disk as each frame is displayed and display on a WPF canvas object at the same time.

Using Binary Writer I can write the byte[] data of the image to disk easily enough and I can easily convert this to a writeable bitmap to display in the canvas.

What I dont understand is this. Is the raw data (byte[] imageData) of a JPEG different (smaller in size) to the raw data of a bitmap? If it is, would it make more sense to convert every RGB image to JPEG then get the byte array for that JPEG and then write that information to disk?

Apologies if that sounds like I have a simple view on this but I'm relatively knew to this type of programming. Thanks in advance for any help.

Answer 1

“原始数据”（内存中的位）对于jpeg，bmp或png相同，它们仅针对图像的大小（宽度，高度）和像素格式（rgb，argb等）而不同。