Here’s the original photo I’ll be using:
The original full color image.
Here’s how the black & white version would look if I simply desaturate it. Not really all that interesting:
Desaturating an image removes the colors but usually creates lifeless black and whites.
And here’s the more “dramatic” black & white version we’ll be
creating in this tutorial, bringing much more emphasis to her face and
hair:
The final result.
Let’s get started!
Step 1: Find The Channel That Has The Best Tonal Range
The first thing we’re going to do is inspect our three
Color Channels
to see which one contains the highest quality image with the greatest
amount of contrast. We’re going to use it as our black and white
version. To do that, switch to the
Channels palette
(it’s grouped in beside the Layers palette). You’ll see three channels
named “Red”, “Green” and “Blue” (you’ll also see a fourth one, “RGB” at
the top, but it’s just the composite of the Red, Green and Blue
channels):
Photoshop’s “Channels” palette showing the Red, Green and Blue channels, plus the composite RGB at the top.
Click on each of the Red, Green and Blue channels to select them
individually. When you click on one, you’ll turn the others off, and all
you’ll see in your document window is a black and white version of the
image. Each of the three channels will have a different black and white
version, so look at all three of them and pick the one that looks best.
In my case, the Green channel looks best, so I’m going to use that one.
Once you’ve chosen the channel to use, press
Ctrl+A (Win) /
Command+A (Mac) to select it, then press
Ctrl+C (Win) /
Command+C (Mac) to copy it.
Click on the
RGB composite channel to turn all the channels back on. Your image will now appear in full color once again in the Document Window.
Step 2: Paste The Channel As A New Layer
Switch back to your
Layers palette and click on the
New Layer icon at the bottom:
Click the “New Layer” icon at the bottom of the Layers palette.
This will add a new blank layer above your Background layer. With the new layer selected, press
Ctrl+V (Win) /
Command+V (Mac) to paste the channel onto the new layer:
Press “Ctrl+V” (Win) / “Command+V” (Mac) to paste the channel into the new layer.
Step 3: Sharpen The Black & White Layer
With the new layer selected in the Layers palette, go up to the
Filter menu at the top of the screen, select
Sharpen and then select
Smart Sharpen. This will bring up the Smart Sharpen dialog box:
Photoshop’s "Smart Sharpen" filter.
Enter an
Amount value of
75% and select the
More Accurate option at the bottom, then click OK.
If you’re using Photoshop CS or older, you can use the
Unsharp Mask filter instead, in which case you would enter
75% for the
Amount, set the
Radius value to
1 pixel, and set
Threshold to
0 levels, then click OK.
Step 4: Add A New Layer Above The Black & White Layer
Click the
New Layer icon at the bottom of the Layers
palette once again to add another new layer, this time above the black
and white layer. You should now have three layers in your Layers
palette, with the new one at the top:
Click the "New Layer" icon to add another new blank layer to the top of the Layers palette.
Step 5: Choose A Black-To-White Gradient
Select your
Gradient tool from the Tools palette, or press
G on your keyboard to access it quickly:
Select the Gradient tool.
Press the letter
D on your keyboard to reset your Foreground color to
black and your Background color to
white if they’re not already. Then go up to the
Options Bar at the top of the screen and click on the gradient preview area:
With the Gradient tool selected, click on the gradient preview area in the Options Bar.
This will bring up Photoshop’s
Gradient Editor. In the "Presets" at the top, click on the
Foreground-to-Background gradient in the top left corner. This will set your gradient colors to black and white:
Photoshop’s "Gradient Editor". Click on the Foreground-to-Background preset gradient in the top left to select it.
Then click OK to exit out of the Gradient Editor.
Step 6: Drag The Gradient Towards The Top Corner Of The Image
We’re going to use the black-to-white gradient to create the illusion
of a subtle light source coming from the top left corner, which will
highlight her face and darken everything else. To do that, I’m going to
start my gradient at the top of her shoulder and then I’ll drag it
towards the top left corner:
Dragging the Gradient tool from the top of her shoulder to the top left corner.
When I release my mouse button, the image is filled entirely with the gradient:
The image is now hidden from view by the gradient.
Step 7: Change The Blend Mode And Lower The Opacity Of The Gradient Layer
With the gradient layer selected, go up to the
blend mode options in the top left of the Layers palette, click the down-pointing arrow to the right of the word “Normal” and select
Overlay from the list. Then, in the
Opacity option to the right of the blend mode options, lower the opacity to
60%:
Change the gradient layer’s blend mode to “Overlay” and reduce the opacity value to 60%.
Here’s what my image looks like now. Notice how there appears to be a
subtle light source shining from the top left which is highlighting her
face and darkening the less important areas of the image:
The image after changing the blend mode and lowering the opacity of the gradient layer.
Step 8: Add Another New Layer To The Top Of The Layers Palette
With the gradient layer still selected, click on the
New Layer icon to add another new layer at the top of the Layers palette. You should now have four layers:
The new layer added above the gradient layer in the Layers palette.
Step 9: Drag Our A Selection With The Lasso Tool
Grab the
Lasso tool from the Tools palette, or press
L on your keyboard to select it:
Select the Lasso tool in the Tools palette.
With my Lasso tool selected, I’m going to drag out a selection around
the woman’s hair and upper shoulders. There’s no need to be surgically
precise with the selection, so the Lasso tool will work fine:
Drag out a selection with the Lasso tool.
Step 10: Fill The Selection With A White-to-Transparent Gradient
Grab your
Gradient tool once again, then press
X on your keyboard to swap your Foreground and Background colors so that
white is your Foreground color. Click on the gradient preview area in the Options Bar to again bring up the
Gradient Editor.
This time, click on the
Foreground-to-Transparent gradient in the list of preset gradients to select it. It’s the second one from the left, top row:
Choose the ‘Foreground-to-Transparent’ preset gradient, second from the left, top row.
Click OK to exit out of the Gradient Editor, then with the new layer
selected in the Layers palette, I’m going to drag out a gradient
starting in the top left of my selected area and dragging down towards
the bottom right:
Drag with the Gradient tool from the top left to the bottom right of the selected area.
When I release my mouse button, the selected area becomes white in
the top left and gradually fades to transparent in the bottom right. I’m
going to deselect my selection using the keyboard shortcut
Ctrl+D (Win) /
Command+D (Mac), and now here’s my image with the new gradient applied:
The white-to-transparent gradient applied to the selected area.
Step 11: Apply The Gaussian Blur Filter
I’m going to apply the Gaussian Blur filter at this point to smooth out that gradient, so I’ll go up to the
Filter menu at the top of the screen, then I’ll select
Blur and then
Gaussian Blur. When the Gaussian Blur dialog box comes up, I’m going to set the
Radius value to about
8 pixels:
Smooth out the edges around the gradient by applying the Gaussian Blur filter.
Click OK to exit out of the Gaussian Blur filter.
Step 12: Lower The “Fill” To 0%
Still with the white-to-transparent layer selected, go up to the
Fill option in the top right of the Layers palette, directly below the Opacity option, and lower it all the way down to
0%. This will completely hide the gradient from view, but it won’t hide any Layer Styles that we’re going to apply next:
Lower the “Fill” value of the white-to-transparent gradient layer to 0%.
Step 13: Add A White "Outer Glow" Layer Style
Click on the
Layer Styles icon at the bottom of the Layers palette and choose
Outer Glow from the list:
Click on the “Layer Styles” icon and select “Outer Glow” from the list.
Set the color of the Outer Glow to
white by clicking on the
color swatch:
Click the “Outer Glow” color swatch to change its color.
This will bring up Photoshop’s
Color Picker. To choose white, enter
255 for the
R,
G and
B options in the bottom right half of the dialog box:
Entering 255 for the R (Red), G (Green) and B (Blue) options creates white.
Click OK to exit out of the Color Picker dialog box. With white now selected as the Outer Glow color, lower the
Opacity value to around
40% and increase the
Size of the glow to about
90 pixels as circled below:
Lower the opacity to 40% and increase the size to 90 pixels.
Click OK to exit out of the Layer Style dialog box, and you’re done!
Here’s my final “dramatic black & white” effect:
di depan setiap perintah EXP. Ganti nilai PHYSMB dengan kapasitas RAM yang ada di computer. Setelah selesai, 
