There are various ways of changing the
brightness /contrast of an image.Here we shall discuss the method that
is non destructive which means that the method does not make any changes
directly to the image.Photoshop adds a new layer and applies the changes to it.The advantage of using this method is that if later we are
not satisfied with the brightness /contrast changes,we can modify the
brightness /contrast levels again.
Before After
This will open the image as a Background layer in the Layers Panel.
2) Selecting the Brightness / Contrast option
We can see a dialog box asking the name of the new adjustment layer.By default Photoshop names it Brightness/Contrast 1.If we want we can type in any other name or we can leave it as Brightness/Contrast 1.Click on OK button after naming the layer.
b) The other way to get the Brightness/Contrast option is by clicking on the Create new fill or adjustment layer icon (half colored circle) in the bottom of the layers panel and selecting Brightness/Contrast... option.
3)Brightness/Contrast Properties panel
Now we can see a Brightness/Contrast Properties panel where
we can edit the brightness/contrast of the image by dragging the sliders to the left or
right.
a)If we drag the Brightness slider towards the right the brightness of the image increases.If we drag the Brightness slider towards the left the brightness decreases.
b)We can also adjust the contrast by moving its slider to the left or right.
c)To exit out of the Brightness/Contrast Properties panel click on the cross mark on the top right of the properties panel or click on the down pointing arrow on the top right corner of the properties panel and select Close.
d)To hide the properties panel click on the double pointing arrow on the top right corner of the properties window .The properties panel will collapse to an icon.
e)We can also see a new layer with a half colored circle surrounded by little rays added just above the image layer in the layers panel on the right side of the photoshop window.
The advantage of using an adjustment layer is that we can double click on the thumbnail of the Brightness / Contrast adjustment layer anytime and change the adjustments again if we are not satisfied with the previous adjustments.
1) Opening the image in the Photoshop window
Open the image that is underexposed (means the one that
needs to be brightened) in Photoshop CS6 by using the menu File > Open or by using the keyboard shortcut Ctrl + O.This
will open a dialog box.Select the image by clicking on its name and click on Open button.This will open the image as a Background layer in the Layers Panel.
2) Selecting the Brightness / Contrast option
After we see the image in Photoshop window we need to open the Brightness/Contrast properties window.For this we need to select the Brightness/Contrast option.There are two ways of selecting the Brightness/Contrast option.
a) Select menu Layer > New Adjustment Layer > Brightness/Contrast...
We can see a dialog box asking the name of the new adjustment layer.By default Photoshop names it Brightness/Contrast 1.If we want we can type in any other name or we can leave it as Brightness/Contrast 1.Click on OK button after naming the layer.
b) The other way to get the Brightness/Contrast option is by clicking on the Create new fill or adjustment layer icon (half colored circle) in the bottom of the layers panel and selecting Brightness/Contrast... option.
3)Brightness/Contrast Properties panel
a)If we drag the Brightness slider towards the right the brightness of the image increases.If we drag the Brightness slider towards the left the brightness decreases.
b)We can also adjust the contrast by moving its slider to the left or right.
c)To exit out of the Brightness/Contrast Properties panel click on the cross mark on the top right of the properties panel or click on the down pointing arrow on the top right corner of the properties panel and select Close.
e)We can also see a new layer with a half colored circle surrounded by little rays added just above the image layer in the layers panel on the right side of the photoshop window.
5)Saving the image
After we are satisfied with the adjustments we will save the image by selecting the menu File > Save or by using the keyboard shortcut Ctrl + S.This will open a dialog box where we can write the name of the image.After typing a name click on Save button.
The advantage of using an adjustment layer is that we can double click on the thumbnail of the Brightness / Contrast adjustment layer anytime and change the adjustments again if we are not satisfied with the previous adjustments.
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