Journal of Applied Mathematics / 2013 / Article / Tab 3

Research Article

An Extended DCT Domain Watermarking for Robot Vision against Geometric Image Attacks

Table 3

Experimental units.

Extraction rate(no. of successfully extracted texts/total no. of texts inserted) * 100
PSNRShows the difference in image or voice using a numerical value.
Insertion speedThe time taken to embed a watermark.
Extraction speedThe time taken to extract a watermark.

We are committed to sharing findings related to COVID-19 as quickly and safely as possible. Any author submitting a COVID-19 paper should notify us at help@hindawi.com to ensure their research is fast-tracked and made available on a preprint server as soon as possible. We will be providing unlimited waivers of publication charges for accepted articles related to COVID-19.