• Jeevan Jot Singh
• Dr.Jyoti Kedia

Image processing is the most common technique in the multimedia. The major block of the image processing is Discrete Cosine Transform (DCT) which comprises of adders and multipliers that are very power consuming. Therefore, it is very important to reduce power in adders and multipliers. That is why approximate adders are used in image processing. Many different types of approximate adder structure are available for the replacement of exact adder. Among all of the approximate adders, inexact adder cell InXA2 gives the better performance in terms of power consumption, delay and area occupied but have a disadvantage that they have very high average and worst delay and power dissipation. Therefore in this work, performance of inexact adder cells circuit has been modified by way of designing circuit through Transmission Gate (TG) which are fast and less power consuming instead of pass transistors. The modified inexact adder cells give better output in terms of error rate, power consumption and least delays.

inexact adder, approximate adder, inexact computing, erroneous outputs, error rate, Transmission Gate (TG), Discrete Cosine transform (DCT)

"Modified Inexact Adder Cell Designs for Approximate Low Power Image Addition", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.169-177, April-2019, Available :http://www.jetir.org/papers/JETIR1904F32.pdf

"Modified Inexact Adder Cell Designs for Approximate Low Power Image Addition", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp169-177, April-2019, Available at : http://www.jetir.org/papers/JETIR1904F32.pdf