Therefore, Facebook supports all image file formats and enhanced (QoE) levels of end-users, but Twitter provided the best QoS of compressed images as compared to Instagram. However, Twitter less supports image formats and provides an acceptable quality of compressed images as compared to others. The results show that Instagram and Facebook compressed images more as compared to Twitter. So we can achieve better results about the SC image quality. These social clouds and image services are compared by the mean, standard deviation (STDEV),mean square error (MSE), and signal-to-noise ratio (SNR). To evaluate the QoS of image compression, we conduct objective QoS techniques to measure the efficiency of image quality and QoS performance of service delivery via uploading /downloading of images on three popular SC, (Facebook, Twitter, and Instagram). As a service provider, the host delivers productive infrastructure, allowing end-users to upload and share their high-quality images.
As a result of this activity, it provides an open challenge for service providers. Sharing (uploading) on SC has become the daily activity of end-users.
QoS is mostly used for measuring various kinds of multimedia data. With the development of multimedia and the popularity of social cloud (SC), Quality of Service (QoS) is used to measure the technical parameters of service delivery.