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Manipulating Digital Image Manipulating Digital Image Visual Technology Production

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Page 1: Studio Photography

Manipulating Digital ImageManipulating Digital Image

Visual Technology

Production

Page 2: Studio Photography

IMAGE TRANSFORMATIONhue and saturation

modifying image colormodifying image lighting

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Image transformation

• Refers to the process of revising the structure of an object from various aspects such as perspective , size, angle of view and so on .

• Through this process , the uniformity of the images can be generated either from the size , view , lighting and so on in order to form a more perfect image

• This process also allows an object or image is placed at an angle or location needed in a more realistic situation and meet the requirements

• There are many type of image transformation like scale, rotate, skew, distort, perspective, warp and flip.

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Image transformation

• Scale

Before

After

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Image transformation

• Scale

Before

After

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Image transformation

• Rotate

Before

After

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Image transformation

• Rotate

Before

After

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Image transformation

• Skew

Before

After

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Image transformation

• Skew

Before

After

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Image transformation

• Distort

Before

After

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Image transformation

• Distort

Before

After

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Image transformation

• Perspective

Before

After

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Image transformation

• Perspective

Before

After

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Image transformation

• Warp

Before

After

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Image transformation

• Warp

Before

After

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Image transformation

• Crop

Before

After

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Image transformation

• Flip Horizontal

Before

After

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Image transformation

• Flip Vertical

Before

After

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To change/ adjust/replace certain

colors in the image

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3 simple ways to change

the color of an object in Photoshop:

Using the Color

Replacement Tool

Using the Selective

ColorUsing the Replace

Color

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Using the Color

Replacement Tool

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BACK

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Using the Selective

Color

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Using the Selective

Color

From this drop down menu, you can select the

color that you want to make a changes

Use the sliders below to change the Yellows in

your photograph.

When you change the sliders, you can see the changes affecting your

final photograph

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Using the Selective

Color

BACK

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Using the Replace

Color

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Eyedropper tool(to select the image you want to make change the color

This the original color,

Use the sliders to change the hue, sat. and lightness color in your selected image

To change the color, click here

Using the Replace

Color

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HUE

The colourin the image

SATURATION

The intensityor richnessof that color

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To adjust colors in an image that

appears slightly out of phase or skewed

toward a color To create stylistic changes by

dramatically changing colors in

an object

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Example using hue/saturation in

Photoshop…

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Example using hue/saturation in

Photoshop…

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On-image adjustment tool

Hue slider

Saturation slider

Lightness slider

Eyedropper tool Colorize

Color bar

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So… let practice guys.. Please open your Adobe Photoshop on your PC.. we do some hands on

activity..

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MODIFYING IMAGE LIGHTING

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Why we want to modify lighting?

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To perceive certain period of a day

To trick people

To enhance the picture

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AFTERBEFORE

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Add lighting

• Using layer style> blend mode>screen

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underexposed

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What tool in photoshop we will use?

Image > adjustment>

shadows/highlight

curves

level

Image > adjustment> shadows/highlight

curves level

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Photoshop shadows/highlight tool

to fix a backlit photo - the light source is behind the object not in front of

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Shadows/highlight

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AfterBefore

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Curves

Using the Curves tool in Photoshop gives you more control in editing photographs such as the brightness, contrast and tones

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Curves tool before adjustment:

Curves tool after adjustment:

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How to brighten or darken an image in Photoshop using the Curves Dialogue Box

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BEFORE AFTER

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BEFORE

AFTER

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References

Jamalludin Harun dan Zaidatun Tasir (2003). Adobe Photoshop 7. Venton Publishing (M) Sdn Bhd. Kuala Lumpur..