:ͼ

ʽ:
ImageZoom(Fopen, k, q, Fsave, IsJpeg)
ImageZoom(Fopen, k, q, Fsave)
ImageZoom(Fopen, k, q)
ImageZoom(Fopen, k)
ImageZoom(Fopen)
ImageZoom()

Fopen:ַ洢ҪͼƬ·,жļɶŷָΪճ򽫴ѡļĴڡ
k:ű,ĬΪ0.1
q:ļ,˲Χ[1,100]ĬΪ100
Fsave:ַ洢ıźͼƬ·,Fopenжļ,˱ҲӦļ,ÿļԶŷָĬֱԭļ.PNGµļ
IsJpeg:ǷJpegʽļ,Ϊ1ʾɣΪ0ʾPNGʽĬΪ0

˵:
1ִгɹ1
2źѹͼ,qƫС⣬IsJpegΪ1