Monday, February 22nd, 2010

Step 4 Photo-editing workflow – Straighten

A photo where an obviously horizontal line like the horizon or the foot of a building runs at an angle instead of straight across an image is disconcerting to the eye.

To straighten a photo click the Straighten tool on the toolbar and drag a line across what should be the horizon in the image. In Photoshop Elements when you let go of the mouse, the photo will automatically be straightened using the line you have drawn.

Before you draw your line you can choose one of the options on the toolbar to configure the tool. These include choosing CropToRemoveBackground which ensures that uneven edges of the image are cropped away in the straightening process.

Helen Bradley

Thursday, December 4th, 2008

Straightening images with Photoshop’s Lens correction tool


Let’s be honest, Photoshop’s tool for straightening an image sucks – well it would if it really were a tool – it’s not even that. It’s a cumbersome workaround.

Start with the Ruler tool (if you can find it – it’s stuck away under the Eyedropper) then ‘measure’ along the line you want to be horizontal. Then choose Image > Rotate Canvas > Arbitrary and accept the value for the angle – that’s what you used the Ruler tool to measure. Wow, that’s sophisticated – NOT! And it gets worse. While now have a ‘straight’ image, the edges look horrible. Grab the Crop tool and crop the image to remove the messy edges.

So, while there isn’t a tool, there is a slightly smarter workaround. Choose Filter > Distort > Lens Correction – ok, I promised it would be smarter – I didn’t say it would be any easier to remember where to find it.

In the Lens Correction dialog, drag on the Angle to straighten the image – best thing about this is that you get a grid to guide you. Then, drag the Scale slider upwards until the rough edges disappear. Then click Ok and you’re done.

So, there you have it, a one stop straightening tool – still sucks compared with programs like Paintshop Pro and Photoshop Elements which will straighten and crop in one step but it does it in one menu rather than 3 tools – I call it an improvement – just!

Helen Bradley