Image masking is a method in Photoshop that helps you clip or remove objects from its background. It helps to remove complex objects where minute details count; it has a pretty more work than a pen tool. Masking images are better in appearance as they can provide the detailed hairs even removed from the background picture. Image masking can be performed in a variety of ways, such as with the highest contrast channel, the pen tool or with the aid of hand painting.Each process has its own particularities and is recommended for a certain type of image.
Alpha Channel Masking Service known as Raster Masking in Adobe Photoshop that requires Photoshop Masking techniques with CMYK, RGB, and various other custom channels. For greater perfection with fine edges, Photoshop Alpha Channel Masking is the best solution.In Photoshop alpha channel masking is very much helpful for translucent & semi-transparent images. It is useful when Clipping Path alone is not applicable on semi transparent or translucent images like glasses, hairs, feathers, smoke, flames, highlights, lighting, chiffon & muslin, etc.
Again, Photoshop Alpha Channel Masking is quite handy for saving a selection for Large image files (PSD, TIFF, PICT, & RAW) and where creating image layers is quite difficult. For best quality Photoshop Masking, manual Alpha Channel Masking can ensure very smooth edges of cutout or isolated images, which is much more advanced level of creating transparency ahead of clipping path.