PERFORMIMG IWT

I am working on

1)3-D Scalable Medical Image Compression With Optimized Volume of Interest Coding

2)I have performed IWT in four steps

a)low pass filter coefficients

b)high pass filter coefficient

c)VERTICAL coefficient

d)DIAGONAL coefficients

When i referred codes for IWT WITH "Distortion_Less_Data_Hiding_Embedding" IWT codes my output is entirely different, can anyone tell what i performed is correct or not...