photo retouching project

8
Image optimization and preparation of images for electronic publishing

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Image optimization and preparation of images for electronic publishing

Image optimization | Photo retouching

Image optimization

• Image optimization is vital for preparing images for digital collections

• Image optimization is the process of getting the right balance of image size and picture quality

• Image optimization is achieved by using a special graphic design software such as Adobe Photoshop, CorelDraw, Adobe Fireworks

• Key areas for optimizing file size: bit depth, resolution, dimension

• Involves the selection of the right file format

Lossy compression vs. lossless compression

Selection of format for master files storage

Selection of format for web publishing

Photo retouching

• Very common in digital libraries

• Important stage of developing digital collections

• The process of preparing images for electronic

publication

• Involves image manipulation using a special

graphic design software such as Adobe

Photoshop, CorelDraw, Adobe Fireworks

• The purpose: to make the images with

aesthetically pleasing appearance and attractive

look by applying various image editing

techniques

• Necessary skill for librarians who process old

photographs | manuscripts | maps as they usually

have poor quality and require special retouching

before uploading in the digital collection

Examples

before

after

Software: Adobe Photoshop CC2014

Techniques

Patch tool (removes date)

Spot healing brush (touch-ups after date removal)

Color balance (enhances colors)

Hue/saturation (enhances colors)

Exposure (corrects tonal values)

File size (before | after)

2538KB 670KB

Dimensions in px (before | after)

2576x1952 640x485

Original copyright: Dimitar Georgiev

Copyright of derivative image: Marina Georgieva

Examples Software: Adobe Photoshop CC2014

Dimensions in px (before | after)

2576x1952 1280x960

before

after

Techniques

Patch tool (removes date)

Spot healing brush (touch-ups

after date removal)

Imported Word calendar with

applied bevel & embossed semi-

transparent base

Major techniques for the collage

3 layers of the same photo Black & white version of the photo for background layer

Middle layer has applied mask. Exposure | Offset |

Gamma correction to make tree stand out. Magic wand

tool to remove everything except for the tree. Colors of

the tree enhanced: Hue/saturation & Color balance

Top layer is only grass. Applied mask. Magic wand tool

removes everything except for small tuffs of grass.

Colors enhanced: Hue/saturation & Vibrance

Original copyright: Dimitar Georgiev

Copyright of derivative image: Marina Georgieva

Examples Software: Adobe Photoshop CC2014

File size (before | after)

673KB 249KB

Dimensions in px (before | after)

900x1344 450x672

before

after

collage

Techniques

Lasso tool (selects window)

Content aware fill (removes

window)

Techniques for collage

Quick selection tool (selects the

lady)

Refine edges (manipulates

hair in greater details)

Apply mask (removes the

background and cuts out only the

selected figure)

Eraser tool for touch-ups

Copyright of derivative images: Marina Georgieva

Examples Software: Adobe Photoshop CC2014

before

after

after Digitized photograph

Great example for retouching

digitized photo with dull colors

Techniques

Brightness & Contrast for

more sharp colors

Levels for stronger highlight

Techniques for the sepia effect

Convert to RGB color mode

Hue | Saturation => Colorize

Copyright of derivative images: Marina Georgieva

Examples Software: Adobe Photoshop CC2014

Digitized photograph

Great example for retouching and

modifying crooked digitized photo

with bluish filter

before

after

Techniques

Crop tool (for straightening the image)

Color balance (for reducing the bluish filter)

Brightness & Contrast (for color sharpness)

Levels (for reducing the white pixels)

Copyright of derivative images: Marina Georgieva

The end Copyright: Marina Georgieva

This project was made

possible thanks to

great option for Internet

accessing of the

Adobe Creative Cloud

2014 installed on the

SOIS virtual machines.

Special thanks to the School of

Information Studies, University of

Wisconsin – Milwaukee for providing

free access to their Virtual Lab.