Color Accents is an interesting technique of Photoshop. You can create emphasis on your photos by making images to black and white for lettering the original color show on your marked items. Bright color images is best for this work. You can choose any versions of Adobe Photoshop for follow my instructions. Go to Photoshop  and place a photo at background layer.  And make two duplicate layers from original layer.  Generally original layer are always locked, cause if you do work on duplicate layers, original layer will not be changed. Typically layers are not visible, don’t worry got window option and