Photographs
from Group 10488
Group List
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Photograph 10488-108
from Group 10488

Previous
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left marker Photograph left marker
Photograph: 10488-108
Group: 10488
Image Number: 108
Disposition: VA Collections
Image Status: Acquired
Location: Unknown
Image Type: Cardstock
Event: Portrait
Num Persons: 1
Part of Album: No
URL: https://www.visualancestor.com/image/?group=10488&image=10488-108
Date (Exact): 1918 Jul 20
Determination: Photographer Stamp
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Front Inscription: None
Back Inscription: None
Other Inscription: None
Provenance: None
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Active: True
Access: Group
Created: March 1, 2025
Contributor: CuratorInChief
Curator: CuratorInChief
Archivist: noelyn03

7ceedc6b-a2e2-42f7-b49e-cb1dd372de70

left marker Photographer right marker
Photographer: 28139
Individual Name: Knudsen Riis
Business Name: Atelier Riis Knudsen
Determination: Photographer Stamp
Num Locations: 1
Location Number: 1
Determination: Photographer Stamp
Loc Begin Date: Unknown
Determination: Unknown
Loc End Date: Unknown
Determination: Unknown
Address: Lille Torv 2
City: Aarhus
Country: Denmark
Note: None
Active: True
Archivist: noelyn03

00c88181-54bf-47e7-bb10-e6b00cd4f049


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left marker License and Citation left marker
License: Public Domain Standard: Visual Ancestor provides access to this and other related digital works based upon evidence that they exist within the Public Domain with no rights restrictions upon them, nor any other restriction on their use. We hold this belief based upon the age and nature of these works, and lack of evidence of any copyrights in effect. However, we do not provide any guarantee, implied or actual, that this is necessarily the case and advise you to arrive at your own conclusion before using these works. If you have evidence that these works are protected by a legally valid copyright, please report such evidence to us for immediate action. Submit take-down request. More about licensing.
Citation: Knudsen Riis of Atelier Riis Knudsen (1918 Jul 20). Photograph 10488-108. https://www.visualancestor.com/image/?group=10488&image=10488-108. In the digital collection Visual Ancestor Group 10488. Visual Ancestor Library of Photographs from 1840-1940. June 17, 2025.

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left marker Facial Recognition left marker
Facial Recognition is an advanced feature of Visual Ancestor whereby each face within this photograph (up to a maximum of ten) is compared to all other faces in the Visual Ancestor Library. Faces that are similar above a 92.00% similarity thresshold are presented. The higher the similarity, the more likely the faces are of the same person.


Facial Recognition is only available for members of the Visual Ancestor Library. Membership is free -- join today.


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left marker Notes left marker
Notes about Altering Photographs

It should always be the case to present the original, unaltered photograph as it really exists as the true obverse "a" side, and likewise the original, unaltered back side as the true reverse "b" side. This ensures the true nature and appearence of the photograph is preserved in an original and unaltered state. If the photograph warrants repair, enhancement, or restoration, this would make for excellent "additional sides" to include along with the original "a" and "b" sides. This is why some photographs have these additional "c" and sometimes "d" sides.

Notes about Photograph Quality

For best preservation, photographs should be scanned at a minimum resolution of 600 dpi (dots-per-inch) for the obverse side, and a minimum of 300 dpi for the reverse side. It is better to capture too much quality and image detail than too little. Tiny photographs can be scanned at 1,200 dpi. Scanners usually have settings that allow you to adjust scanning resolution.

Image compression also plays a factor in image quality. Higher compression means image quality is lower, but the file size commensurately decreases. File formats that are "lossless" have no compression (thus maximum quality), but may consume more memory space than what is really needed. Visual Ancestor uses JPG images with 5% compression (95% quality factor) for the obverse side, and 10% compression (90% quality factor) for the reverse side.

Notes about Shading and Hues

The shading and hues of color of a photograph can vary from when it appears in an album page (usually lighter and dominated by lighter hues) to when it is scanned alone (usually darker and dominated by darker hues). This is due to how a scanner or camera adjusts the overall shading and coloring of the overall image based upon the entire field of light that it captures.

The surface area of album pages, which are usually very light in shading, influences how the photographs appear therein. This is why a photograph in an album page may appear lighter and dominated by lighter hues, while the exact same photograph when viewed alone may appear darker and dominated by darker hues.