How to defog using Photoshop

Photoshop CC new version comes with dehaze feature. You can refer to this post: How to use Dehaze in Photoshop  

This is before

This is after

If you use old Photoshop or you want to control defog manually, you may have many other options.

  1. Exposure levels correction. To do that, go to Image>Adjustment>Levels.

In the histogram, move the left slider in towards the end of the histogram until the object becomes more visible. You can do the same with the right slider.

2. Unsharp mask. To do that, go to Filter>Sharpen>Unsharp Mask.

You may try a couple times starting Amount 10% and Radius 20 Pixel; then Amount 20% and Radius 40 Pixel; finally 20% and 80 Pixel.

3. Contrast. To do that, go to Image>Adjustments>Brightness/Contrast. Adjust the Contrast, for example 60.

4. Some people say we can try High Pass and Overlay. To do that, go to Filter>Other>High Pass.

In Layers, change Blending Mode from Normal to Overlay.

How to duplicate one image into another in Photoshop

There are many options to merge one image into another image. Here are how to do it.

Open the source and destination images. Do one of the following:

• Drag and hold the layer from the Layers panel, move to the destination image and then release.

•Select the Move tool and move the source image to the destination image. 

•Choose Duplicate Layer from the Layers menu or the Layers panel menu. Choose the destination document from the Document pop‑up menu, and click OK.

•Choose Select > All to select all the pixels on the layer, and choose Edit > Copy. Then choose Edit > Paste in the destination image. (This method copies only pixels, excluding layer properties such as blending mode.)

How to merge multiple images in Photoshop

This is the result:

  1. Open multiple images in Photoshop.
  2. Add a new page with the size and resolution you want.
  3. Move a first image into the new page.

4. Fill (Edit>Fill) the background to the rest of area.

5. Move the second images into the new page and select Lighten in Blending Mode under layer.

6. Continue to add images one by one and Lighten until you add all images. Note: you need to do Lighten one by one. In other words, you can’t add all images first and do the Lighten once.

7. Crop and edit it.