How to increase the sharpness of a photo?

So many times, we don't get as sharp images as we wanted. You went to a very good hill station, took some snaps and one of the best one is not having a good sharpness. Now you cannot go back to there frequently. So Photoshop comes in handy at that time.  You can use one of the following methods to increase the sharpness of the images.

Method 1:
You can directly change the sharpness from the Filter>sharpen>sharpen.

But all know about that very well, and I don't have to write a post for that. But recently, I learned one nice method to increase the sharpness without making it much obvious.

Method 2:
STEP 1: Open Image in photoshop.

 

STEP 2: Change the color mode to Lab from Images>Mode>Lab color.

STEP 3: Go to Windows>channels. You will see following image.

STEP 4: Click on the "lightness"
STEP 5: Go to FIlter>sharpness>unmask sharpness

I did the following changes. You can try what ever suits with your snap.
Generally, I don't increase Amount more than 150. Keep Radius between 1-3. Threshold 1-2.

Most important, change the color Mode back to RGB. Images >Mode> RGB color.
Here is the final results.

Additional Steps

 

STEP 1: Right click on the image>duplicate layer> ok.

STEP 2: Change the blending mode to "Overlay".
Here is your result.