Ad­just a photo’s colour tem­per­a­ture to coun­ter­act warm or cool colour casts

NPhoto - - Competition -

01 Be­fore and af­ter

When you’re ad­just­ing an im­age’s white bal­ance, it helps if you can com­pare the edited ver­sion with the orig­i­nal – you’ll of­ten find that an im­age’s colours look okay un­til you see the dif­fer­ence that select­ing a dif­fer­ent white bal­ance set­ting makes. To do this, click and hold on the Multi-Pre­view icon and choose Com­pare Be­fore and Af­ter Im­ages. This will en­able you to see the im­age’s orig­i­nal colours in the left-hand pane.

02 Meta­data

Be­fore you start to cor­rect a photo’s colours it can be help­ful to check which white bal­ance set­ting was used to take the shot. The Shade set­ting will warm up colours to counter the cool qual­ity of shaded light, for ex­am­ple, while In­can­des­cent will cool down warm ar­ti­fi­cial light­ing – so if you select In­cade­s­cent when shoot­ing out­doors you’ll cap­ture im­ages with very blue colours. The meta­data pane en­ables you to dis­cover which white bal­ance set­ting was used at the time of shoot­ing.

03 Edit pane

If you shoot in RAW, this pane en­ables you view and ad­just a range of cam­era set­tings, in­clud­ing the white bal­ance pre­set used for each shot. By de­fault the white bal­ance will be set to Orig­i­nal, and your im­age will be dis­played with the set­ting that you chose in-cam­era ap­plied.

04 White bal­ance presets

If you’ve used an in­cor­rect white bal­ance pre­set in-cam­era and need to change it, or if you just want to ad­just the white bal­ance to cre­ate a dif­fer­ent feel, you can ex­per­i­ment with the var­i­ous presets in this drop-down menu, which cor­re­spond to the presets on your D-SLR. Our un­pro­cessed ex­am­ple im­age has rather cold-look­ing shad­ows, so we could try warm­ing them up by us­ing the Shade pre­set. How­ever, in this case the Shade pre­set will make the warmer-look­ing, sun­lit parts of the build­ing look too or­ange.

05 White Bal­ance pane

Af­ter click­ing the white bal­ance icon this pane ap­pears. Its drop-down menu also gives you ac­cess to var­i­ous white bal­ance presets (such as Direct Sun­light), but you can also ap­ply a more suit­able cus­tom white bal­ance by us­ing the Gray Point Sam­ple tool.

06 Gray Point Sam­ple tool

You use this tool by click­ing on a tone in your im­age that should be white or grey. Cap­ture NX-D will warm up or cool down that tone to cre­ate neu­tral whites or greys, and the same ad­just­ment will be ap­plied to colours through­out the im­age to cor­rect them. You can also select the Gray Point Sam­ple tool from the main tool­bar.

07 Fine Ad­just­ment

Af­ter us­ing a white bal­ance pre­set or ap­ply­ing a cus­tom white bal­ance, you can fine-tune the re­sults us­ing this slider. This is par­tic­u­larly use­ful when deal­ing with im­ages that were shot under mixed light­ing.

08 Tint

As well as suf­fer­ing from blue or or­ange colour casts, some im­ages may ex­hibit green or ma­genta tints caused by flu­o­res­cent or other ar­ti­fi­cial light­ing. You can coun­ter­act these tints us­ing this slider.

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