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Enhancing the " Dynamic Range " of Scanned Images

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Last updated: 04 Jan 2025

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Abstract

When digitizing images to computer normally the image is subject to some changes in the color tonal value, thus a post scanning process is a must to restore some of it's original color quality.
before the use of scanner a manual process is performed to give this action, with the use of digital software anew technique is need to give the same function enhancing the quality of the image color in the form of expanding the image dynamic range.  
The problem of the present study is the scanning of images causes some loss in color data (in the form of shrinking the dynamic rage) this can be reviewed using the “ Histogram “ of the scanned image comparing with the dynamic range of the original print and measured using the info palette.  Some tonal correction operation that were carried out using the "photo-mechanical camera" are no longer been used, and therefore we lost this function when "photo-mechanical camera" is no longer been used that's when we need to find a new digital function to replace that fatal tonal correction operation. Therefore the target of this paper has been to convert the "photo-mechanical camera" tonal correction technique into a digital process by expanding the dynamic range of scanned image.

DOI

10.12816/0049421

Keywords

dynamic range, digital image editing, Color Correction, enhancing image quality, scanning problems

Authors

First Name

Ibrahim

Last Name

Wali

MiddleName

Esmat

Affiliation

Printing, Publishing & Packaging Department, Faculty of Applied Art, Helwan University

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Orcid

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Volume

7

Article Issue

1

Related Issue

12186

Issue Date

2017-01-01

Receive Date

2020-07-19

Publish Date

2017-01-01

Page Start

247

Page End

253

Print ISSN

2090-9632

Online ISSN

2090-9640

Article File

IDJ_Volume 7_Issue 1_Pages 247-253.pdf

PDF . 1.1MB

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https://idj.journals.ekb.eg/article_89198.html

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https://idj.journals.ekb.eg/service?article_code=89198

Order

17

Type

Original Article

Type Code

1,217

Publication Type

Journal

Publication Title

International Design Journal

Publication Link

https://idj.journals.ekb.eg/

MainTitle

Enhancing the " Dynamic Range " of Scanned Images

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Type

Article

Created At

22 Jan 2023