To display a bitmap image using progressive scanning aka non-interlaced scanning or de-interlaced scanning

To display a bitmap image in c or c++ using progressive scanning aka non-interlaced scanning or de-interlaced scanning, where we take a bmp image as an input(Previously existed one). I need code and explanation. . . I need in matlab also. . .

Answer 1

[Image Analyst]

As far as I know, a BMP image is stored bgrbgrbgrbgr..... and the imread function "deinterlaces" the colors. But I don't believe it interlaced spatially. Even if it were, again, the imread function hanndles that. So why can't you just use imread to read in your images?