影象運算(七)——邏輯或(OR)
阿新 • • 發佈:2019-02-04
描述:
As OR
input1input2output
0 0 0
0 1 1
1 0 1
1 1 1
As NOR
input1input2output
0 0 1
0 1 0
1 0 0
1 1 1
Code:
Such as :
/** *Applies the image OR operator on the specified image arrays, with the specified offset and scale value *@param src1_1d The first source image as a pixel array *@param src2_1d The second source image as a pixel array *@param NOR Boolean to indicate wether we should NOR rather than OR *@param width width of the destination image in pixels *@param height height of the destination image in pixels *@param oset The offset value *@param scale The scale value *@return A pixel array containing the (N)OR of the two input images */
public int [] doOr(int [] src1_1d, int [] src2_1d, boolean NOR, int width, int height, float oset, float scale){ int place1 = -1; int place2 = -1; int src1rgb = 0; int src2rgb = 0; int result = 0; d_w = width; d_h = height; dest_1d = new int[d_w*d_h]; boolean firstwider = false; boolean secondwider = false; int wrap; if (i1_w > d_w){ wrap = ((i1_w + 1) - d_w); firstwider = true; } else if (i2_w > d_w){ wrap = ((i2_w + 1) - d_w); secondwider = true; } else { wrap = 0; } //if you know there is no wrap around, you can save yourself some time if (wrap == 0) { for (int i=0; i< dest_1d. length ; i++){ src2rgb = src2_1d[i] & 0x000000ff; src1rgb = src1_1d[i] & 0x000000ff; if (NOR) { result = (int) ((scale * (float)(~(src1rgb | src2rgb) & 0xff))+oset); } else { result = (int) ((scale * (float) ( src1rgb | src2rgb )) + oset); } if (result < 0){ result = 0; } else if (result > 255){ result = 255; } //create an int value for dest_1d dest_1d[i ] = 0xff000000 | (result + (result << 16) + (result << 8)); } return dest_1d; } else { for (int i=0; i< dest_1d. length ; i++){ //we might need to skip out some pixels which aren't in the overlap area if ((i %d_w ) == 0 ) { if ( i == 0 ){ place1 = 0; place2 = 0; } else if (secondwider) { place2 = place2 + wrap; place1 ++; } else { place1 = place1 + wrap; place2 ++; } } else{ place2 ++; place1 ++; } src2rgb = src2_1d[place2] & 0x000000ff; src1rgb = src1_1d[place1] & 0x000000ff; if (NOR) { result = (int) ((scale * (float) (~(src1rgb | src2rgb) & 0xff))+ oset); } else { result = (int) ((scale * (float) ( src1rgb | src2rgb )) + oset); } if (result < 0){ result = 0; } else if (result > 255){ result = 255; } //create an int value for dest_1d dest_1d[i ] = 0xff000000 | (result + (result << 16) + (result << 8)); } return dest_1d; } }
Input Image:
Output Image:
總結:一句話概括之“取其共性,去其糟粕”