There are different ways in eliminating opacity on images. One of
basic techniques is use of gradient tool. A gradient tool is used to edit or modify a part or entire layer of an image. It is located in tool bar and there is a window provided to customize your gradient.Different gradient shapes include diamond, reflected, linear, etc. There is also gradient blending modes for foreground and background colors. Just double click tool bar in color picker to change color of foreground or background. You can have your foreground transparent. its color fades so you will be able to see layers below. Fading is done by swiping across pixels.
Different locations for gradient include Adjustment Layer, Fill Layer, Layer Styles Menus and Tool Options Bar.
There are two gradient types or settings, solid and noise. Solid is a gradient generated algorithmically, while noise is from RGB values. Solid gradient is used for manually set colors, while noise is for numerous color bands.
Before you can use gradient tool, convert first background layer to a regular layer. Then, create a gradient layer. Choose any gradient style and make sure that gradient layer is transparent. The transition between color bands can be determined by adjusting smoothness. Short strokes result to sharper gradient and long strokes result to smoother gradient.
