Sometime it’s need to keep a clone and heal area absolutely straight when repairing an image. It’s tricky at the best of times when using a mouse to keep a line straight, even when using a Wacom pen it’s challenging to hold a straight line.
In the image below there are some marks on the wall (big and small), that I may want to clean up. In fact this area is so small it’s probably not going to be noticed, but there is always that time when some precision is required on the edit. There is a small area in the image where filler can be seen instead of the actual wall. It’s a different colour to the wall and it doesn’t look very natural. it’s tiny but might be noticeable on a print. I want to replace the smallest amount of pixels possible, and also keep the integrity of the area around it, in this case the intersection of the bricks.
I have zoomed into picture (shown below), so that you can see the issue. The filler has been used to fix a piece of the brick work just where the bricks are joined. I’d like to keep the original brick joins and just replace the plaster work and make it the same as the original brick texture.
If Lightroom is moved into the Development module, the clone/heal tool selected, and image is kept zoomed to this level, the small detail will be easier to work on. I would like the clone to almost follow the natural line of the brick work (vertical or horizontally). Before the clone/heal tool (marked Red) is applied you can hold the Shift key down to keep the clone patch tool (marked Pink), straight along the horizontal or vertical). Using the clone/heal tool attributes (marked Yellow), primarily the feather/opacity values, the patch can be blended into the scene.
Once the straight edge has been fixed, the rest of the patch can be applied (marked Red).
Whilst I agree that this demo is splitting hairs, it does show the control that you have from Lightroom 5.2. Also, the same technique can be used on larger areas, it’s a good general tip to have in your editing tool bag to really clean up those troublesome & tricky images.
You can see the effect on the whole picture.
Camera RAW (ACR) in Photoshop has exactly the same feature.