**6. Conclusion**

Image fusion plays a very important role in medical diagnosis to help doctors for examining the abnormalities in CT and MRI images. In this chapter, different image fusion techniques have been discussed and three algorithms have been implemented in MATLAB for two different datasets collected from various sources

and compared the results with the existing methods in literature. Low dose CT scan images have been enhanced using Image enhancement techniques and fused with MRI images. From the results, it is analysed that the PCA algorithm results in better

performance in terms of PSNR, MSE and RMSE.

*Fused image of Data set-2 in DWT. Simple Averaging Method.*

*A Hybrid Image Fusion Algorithm for Medical Applications*

*DOI: http://dx.doi.org/10.5772/intechopen.96974*

**Figure 8.**

**Figure 9.**

**71**

*Fused image of data set-2 in PCA.*

*A Hybrid Image Fusion Algorithm for Medical Applications DOI: http://dx.doi.org/10.5772/intechopen.96974*

**Figure 8.** *Fused image of Data set-2 in DWT. Simple Averaging Method.*

**Figure 9.** *Fused image of data set-2 in PCA.*

and compared the results with the existing methods in literature. Low dose CT scan images have been enhanced using Image enhancement techniques and fused with MRI images. From the results, it is analysed that the PCA algorithm results in better performance in terms of PSNR, MSE and RMSE.

**6. Conclusion**

**Figure 7.**

**70**

**Figure 6.**

*Data set-2 of the brain. (a) MRI scan image. (b) CT scan image.*

*Multimedia Information Retrieval*

Image fusion plays a very important role in medical diagnosis to help doctors for examining the abnormalities in CT and MRI images. In this chapter, different image

implemented in MATLAB for two different datasets collected from various sources

fusion techniques have been discussed and three algorithms have been

*Fused image of data set 2 in DWT. Maximum selection Rule method.*


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*DOI: http://dx.doi.org/10.5772/intechopen.96974*

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### **Table 2.**

*Comparison parameters of the output images of fusion algorithm of Dataset-2.*
