How to edit splash.img which displays the boot logo in Snapdragon chipset devices?

As far as I know, most devices powered by Snapdragon Chipsets stores the boot logo (splash screen that shows up when device is switched ON) in a partition named 'splash' which contains ***splash.img*** Is there a way to edit the splash.img file or create a new one? **Additional Info:** It seems there is some script/software for HTC phones to edit the splash image, but it seems it will set the image (picture) resolution to that of HTC phone's resolution. My device is: Yu Yuphoria