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mAtlAB uint8תΪint8

ǿתתˣõʱתУĸǰ(int)(double)

򵥵ķǰIΪdoubleͺ+128תΪuint8 I=double(I)+128; I=uint8(I); ȻҲIµһunit8JͨжõJ(i,j)ֵ I(i,j)>=0ʱJ(i,j)=128+uint8(I(i,j)); I(i,j)

ʹdouble 磺 a=int8(124);a2=double(a);whosöδȴһuint8ıa doubleaΪdoubleֵa2 ͨwhosʾͣ Name Size Bytes Class Attributes a 1x1 1 int8 a2 1x1 8 double

ʹdouble 磺 a=int8(124);a2=double(a);whosöδȴһuint8ıa doubleaΪdoubleֵa2 ͨwhosʾͣ Name Size Bytes Class Attributes a 1x1 1 int8 a2 1x1 8 double

ھʹõdouble˿ͨI2=im2double(I1) ;ͼI1תdoubleͣתڶuint8мӼʱʾĴΪFunction '*' is not defined for values of class 'uint8' ٸ㼸...

>> A = 255*rand(2,3) A = 242.2830 154.7449 227.2812 58.9403 123.9255 194.3347 >> B = int8(A) B = 127 127 127 59 124 127

B=int8(A)

1ͣint8uint8int16uint16int32uint32int64uint64ͨintmax(class)intmin(class) ظ͵ֵСֵintmax(int8)=127 2㣺singledouble REALMAX('double')REALMAX('si...

UINT8ôתCHAR 1ͣint8uint8int16uint16int32uint32int64uint64ͨintmax(class)intmin(class) ظ͵ֵСֵintmax(int8)=127 2㣺singledouble REALMAX('d...

x=tant,t(-/2,/2),(1+x²)=sect,dx=sec²tdt ҡ(1+x²) dx =sec³t dt =sect d(tant) =sect*tant-tant d(sect) =sect*tant-tan²t*sectdt =sect*tant-(sec²t-1)*sectdt =sect*tant-sec³tdt+sectdt...

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