Desaturate command & Adjustment layer named Hue/Saturation

As I have explained in my earlier post that through the command named Desaturate you can transform a colored picture ( RGB, CMYK or Lab) into something look like a Grayscale image. The difference between desaturated RGB, CMYK or Lab images and  Grayscale images is that we can add different colors in desaturated images  using different tools and commands, but in case of Grayscale images , there is no way to add any color other than black white and different shades of gray in the image . It is extremely simple to transform a colored image whether it be a CMYK , RGB or Lab image into black and white by applying the command named Desaturate upon it.  All you need to do it to open the image in Photoshop and hit CTRL + Shift +U on the keyboard. As soon as these keys will be pressed, the image will lose all the color information  and turn into black and white. In case you forget these short cut keys, then simply click the image tab on the menu bar of Adobe Photoshop to open Image Menu. Then select the option named Adjustment to open the Adjustment Menu containing various commands. Out of those commands select Desaturate by clicking on it and just one click will discard all the information regarding colors and transform the image into black and white.

use-for-adjustment-layer-named-Hue-Saturation
Give awesome look to different images 

Having applied Desaturate command on any image you can apply various tools on the image to give it unique and awesome look. In this post I am going to explain a very simple method through which you can add color in a desaturated image using  adjustment layer named  Hue/Saturation .

How to add color in a desaturated image using adjustment layer named Hue/Saturation?


First of all open a colored picture in Photoshop, preferably 8-bits RGB (as 8-bits RGB is the most suitable color mode for any image that is going to be edited). In case you don’t have any 8-bits RGB image for that experiment, you can easily convert any image into 8-bits RGB. In order to convert the color mode of any CMYK or Lab image into 8-bits RGB, all you need to do is to get inside the Image Menu and select the option named Mode. As soon as you will select that option, there will be appeared a side menu showing different color modes you can apply on your image. Out of those modes select RGB and 8-bits/Channel by clicking on each and in an instant your image will be transformed into 8-bits RGB.For instance in the image given blow you can see a  16-bits CMYK image which is not at all suitable for any sort of editing. 
CMYK-Color-Mode-and-16-bits-channel
Image not at all suitable for editing
CMYK is a color mode that is suitable for printing different  images on paper and at the same time, not at all suitable for editing images while 16-bits channel doesn't allow the use of most of the tools (including Move ToolBrush ToolEraser ToolClone and Pattern Stamp ToolsBurn ToolBlur Tool etc) on the image as 8-bits channel allows. Further, while working with 16-bits channel, you cannot add any layer in the document as you can do while working with 8-bits channel. So before applying any command upon that image it is better to transform that image from 16- bits CMYK to 8-bits RGB by putting checks beside the options RGB and 8-bits/Channel given in the side menu of Mode according to the picture below.

RGB-Color-Mode-and-8-bits-channel
Image suitable for editing
Having converted the color mode of the image into 8-bits RGB, the next thing which is supposed to be done is the creation of  a duplicate of the locked background  layer. In order to create a duplicate of that layer hit CTRL + J on the keyboard . As soon as you will do so, there will be appeared another thumbnail  containing the same image in the layer palette right above the background layer according to the picture below.
New-thumbnail-in-the-layer-palette
Two thumbnails in the layer palette containing two identical layers
After that, desaturate the image on the duplicate layer either by hitting Shift + CTRL +U on the keyboard or by selecting the command named Desaturate given inside the Image Menu’s option Adjustment’s side menu according to the picture below.

Image-Adjustment-Desaturate
Option name Desaturate given inside the Adjustment Menu
As soon as you will select that command,  all the colors in the selected layer will be transformed into black, white and different shades of gray according to the picture below.

Layer-1-after-being-desaturated
Image showing no color but black, white and different shades of grey
Having desaturated the selected layer, make selection of any part of it using any selection tool (as I have decided to add color in the lips only and keep rest of the layer black and white so I’ll make selection of lips using Polygonal Lasso Tool).  So select Polygonal lasso tool by clicking on it in the tool panel according to the picture below.

Lasso-tool-Polygonal-lasso-Tool-Magnetic-Lasso-Tool
Polygonal Lasso Tool  in the Tool Panel
As soon as the Polygonal Lasso Tool will be selected, pointer of your mouse will assume the shape of Polygonal Lasso Tool icon and the setting options of the same tool will be appeared in the option bar that can be seen usually right beneath the menu bar. Out of those options select  New selection as selection type , set Feather equal to 0 px and put check inside the check box named Anti-aliased to keep the edges of the selected area smooth and appealing according to the picture below.

New-Selection-Feather-Anti-aliased
Set the Selection Type and Feather and put check inside the check box named Anti-aliased
Having done that setting, zoom the picture in by hitting  CTRL + + on the keyboard once or twice to make selection easier. Having zoomed the picture in, put the Polygonal Lasso Tool shaped pointer of your mouse on any point at the edge of lips’ outline and click the left button of your mouse once.  As soon as you will do so, selection thread will be stuck to that point according to the picture below.

Starting-point-of-selection
Selection is being started
Then trace the outline of lips by dragging your mouse and clicking the left button of it every time you feel any need to change the direction of selection according to the picture below.

A-host-of-clicks
Clicks on different places while making selection
Then end the selection of lips at the same point you started it by clicking the left button of your mouse on the same point according to the picture below.

Complete-tracing
End the selection of lips on the same spot you started it
Having finished the tracing , hit Enter to complete the selection.  As soon as you will hit Enter, the selection thread will be vanished and the edges of selected area will begin to glimmer according to the picture below.
Selected-lips
Glimmering edges around  lips are indicating that this  part of the layer  is selected
Then, in order to add some  color inside the selected part of the layer through Hue/Saturation dialogue box you need to create a new Adjustment layer.  To create that layer click the small icon that can be seen right beneath the layer palette and says Create new fill or adjustment layer every time having been hovered over.

Fill-or-Adjustment-layer-icon
Icon named Create a new fill or adjustment layer
 As soon as you will click that icon, there will be appeared a menu containing various options including Hue/Saturation. In order to create a new adjustment layer, and to open Hue/Saturation dialogue box , select  the option Hue/Saturation by clicking on it.

Click-on-hue/saturation
Adjustment layer menu
As soon as you will select that option, the glimmering edges of the selected part of the layer will be disappeared  and there will be appeared two thumbnails  in the layer palette right above  layer 1, representing newly created adjustment layer and a layer mask. Further, along with these two thumbnails in the layer palette, there will be appeared a dialogue box named Hue/Saturation according to the picture below.

Adjustment-layer-with-layer-mask-and-Hue-Saturation
Newly created adjustment layer and layer mask in the layer palette along with dialogue box named Hue/Saturation
In the dialogue box named Hue/Saturation, you can see a drop-down menu named Edit, three sliders under the heads of Hue, Saturation and Lightness,  three inactive Eyedropper Tools and two small check boxes named Colorize and Preview along  with some buttons.

In order to add color in the formerly selected part of the image through this dialogue box , first of all, put check inside the check box named Colorize. As soon as you will do so, the formerly active drop-down menu named Edit will get inactive. After that all you need to do is to put check inside the other check box named Preview  so that you could watch the preview of different settings of hue, saturation and lightness and to move the sliders from left to right or from right to left to achieve desired color with desired intensity for the formerly selected part of the image. For instance if you set the slider named Hue at the position of 0, slider named Saturation at the position of 100 and the slider named Lightness at the position of 0 the result will be the bright red color inside the formerly selected part of the image according to the picture below.

bright-red-lips
Hue, Saturation and Lightness have been set at the positions of  0, 100, 0 respectively
In case you set set the slider named Hue at the position of 310, slider named Saturation at the position of 81 and the slider named Lightness at the position of -67 the result will be the dark purple or magenta color inside the formerly selected part of the image according to the picture below.

dark-purple-lips
Hue, Saturation and Lightness have been set at the positions of  310, 81,- 67 respectively
In order to apply any setting finally upon the image click the button named OK.

So that is is how you can add color in any selected part of a desaturated image using adjustment layer named Hue/Saturation. Apart from all this, there is another  big advantage associated with this method. That is, by showing and hiding different layers in the document  you can save a single image with different aspects. For instance, if you hide the layer named Hue/Saturation by hiding the small eye shaped icon beside it (in order to hide small eye shaped icon beside any layer, all you need to do is to click on that icon once), you will be able to save a totally black and white image in JPEG, PNG or any other format like the image  below.

Hue/Saturation-layer-is-hidden
Image looks completely black and white when you hide the layer named Hue/Saturation 
In case, you hide both layers named Hue/Saturation and Layer 1 together by clicking the small eyes shaped icons beside each of  these layers,  you will be able to save the image in its initial undedited form according to the picture below.

Locked-background-layer-is-not-hidden
 Visible Background layer containing image in its original aspect

And if you hide  Layer 1 only and keep the Background layer and the layer named Hue/Saturation unhidden, you will be able to save the image in the form you can see in the picture below.

No-desaturation
Image with layer 1 completely invisible
And if you keep all the layers visible you will be able to save a black and white image with colored lips as you have seen earlier in this post.
I am sure all my readers will find this post helpful and interesting so have fun with it, but kindly don't forget to subscribe your comments.


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