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LARGEIMAGESIZE - Detailed description

FM-Portal

IC2887
Administrator
FM-Portal

Overview

Parameters:LARGEIMAGESIZE
Category: Imaging (Image Processing)
Default value: 1600x1200
Product: eTASK.Other (Imaging)

What does this parameter do?

This parameter defines the maximum dimensions for large image versions that are automatically generated when photos or images are uploaded to the eTASK.FM portal. The system saves each uploaded image in three different sizes (small, medium, large) and uses the appropriate version depending on the context.

The large image size is primarily used in detail views, image galleries, and when zooming, where maximum image quality is important.

What is this parameter used for?

  • Automatic creation of large, high-resolution image versions upon upload

  • Providing maximum image quality for detail views and zoomed-in views

  • Zoom functionality in image galleries and document views

  • Archiving high-quality image versions

  • Use in document management (table Gl_Dokumente_T, field Foto_Gross)

  • print templates, and high-resolution output

Technical details (for administrators)

Format: String in the format <Breite>x<Höhe> (e.g. 1600x1200)
Default value: 1600x1200

Valid values: - Format: <Breite>x<Höhe> (both values in pixels) - Examples: 1280x960, 1600x1200, 1920x1440, 2048x1536 - Width and height must be positive integers - The "x" between the values is a lowercase letter

Important notes:

  • This parameter is used when uploading images to create the large version

  • Image conversion occurs automatically in the background

  • The system reads the parameter from the database table GL_PROJEKT_KONFIGURATION_T (Type: IMAGING)

  • If the format is invalid, the default value 1600x1200 is used

  • The large image version is stored in the Foto_Gross of the table Gl_Dokumente_T is saved

  • A subsequent change to the parameter only affects newly uploaded images

  • Very large values can lead to significant storage requirements and long upload times

Interaction with other parameters:

  • SMALLIMAGESIZE: Defines small image version (default: 200x150)

  • MEDIUMIMAGESIZE: Defines the medium image version (default: 800x600)

When should you change this value?

Reduce the value (e.g., to 1280x960 or 1024x768) if:

  • Storage space is severely limited

  • Very large numbers of images are being uploaded (>100,000)

  • Upload times need to be reduced

  • Maximum image quality is not required

  • Backups need to be performed faster

Increase the value (e.g., to 2048x1536 or 2560x1920) if:

  • High-resolution displays are used (4K/5K monitors)

  • Professional photo documentation is required

  • Print quality is important (reports, brochures)

  • Archiving of the highest quality is desired

  • Sufficient storage space and fast network connections are available

Leave 1600x1200 (default) if:

  • A good balance between quality and storage requirements is desired

  • Typical use cases need to be covered

  • Standard Full HD monitors (1920x1080) are used

  • There are no special requirements

Important Notes

  1. Aspect ratio is preserved
    This parameter defines only the maximum values for width and height. The system scales images proportionally so that the original aspect ratio is preserved. A portrait-oriented photo (e.g., 4000x6000) is scaled to 800x1200, not distorted to 1600x1200.

  2. Storage requirements can be significant
    A large image version with 1600x1200 pixels typically requires 300–800 KB of storage (JPEG-compressed). At very high resolutions (e.g., 2560x1920), this can amount to 1–2 MB per image. For 50,000 images, this amounts to 15–100 GB for large versions alone.

  3. Note upload performance
    : The higher the value, the longer image processing takes during upload. For very large original images (e.g., 20 MP camera photos) and high target resolutions, an upload can take several seconds.

  4. Only for new uploads
    A change to this parameter only affects future image uploads. Large images already saved retain their previous size.

  5. Structure the three-size system
    sensibly Ensure reasonable gradations: Small (200x150) → Medium (800x600) → Large (1600x1200). Avoid too small a difference between medium and large images.

  6. Original image data is not saved
    The portal saves only the three scaled versions, not the original image. The large version is therefore the highest-quality version available.

Security

Does changing this parameter affect security?

No, this parameter has no direct security implications.

  • No impact on access control or permissions

  • No processing of sensitive data

  • No network communication or external interfaces

  • No authentication or encryption functions

Indirect considerations:

  • Denial-of-service risk: Extremely large values (e.g., 10000x10000 or more) can lead to memory or CPU overload during mass uploads. The system might stop responding. Recommendation: Keep maximum values below 4000x4000.

  • Storage space exhaustion: Values that are too large can lead to a shortage of space over time, which can affect the entire system.

  • Upload flooding: Attackers could attempt to overload the system by uploading large numbers of large images.

Data protection assessment:

  • The parameter itself does not store any personal data

  • Uploaded images may contain personal data (photos of people, license plates, etc.)

  • Image size has no impact on GDPR compliance

  • Access permissions for images are controlled by other systems

  • Higher resolutions may reveal details that would not be visible at lower resolutions (data protection consideration)

Conclusion: No direct security risks. Purely technical configuration for image processing with indirect performance implications.

Practical example

Initial situation:
A real estate company uses eTASK to manage its buildings and creates high-quality photo documentation for marketing materials and property brochures. The current large images 1600x1200 have too low a resolution for professional print products and appear pixelated.

Configuration:

After the change:

  • Newly uploaded architectural photos are saved at up to 2560x1920 pixels

  • The image quality is sufficient for high-quality prints (up to DIN A4)

  • Zoom functions show significantly more detail

  • File size per large image increases from ~500 KB to ~1.2 MB

  • With 2,000 new images per year, this corresponds to an additional 1.4 GB of storage space

  • Upload time per image increases from 2 to 4 seconds (with an average internet connection)

Result:
Professional image quality for marketing purposes with moderate storage requirements. The investment in higher resolution pays off through better presentation of the properties.

Alternative scenarios:

Scenario A - Technical customer service with many images: - 500 technicians upload photos of maintenance work daily - An average of 50,000 images per month - Storage space is limited and expensive - Reduction of 1600x1200 to 1280x960 - Storage savings: approx. 40% (~250 KB instead of ~400 KB per large image) - Annual savings: ~100 GB of storage - Image quality is entirely sufficient for maintenance documentation

Scenario B - Museum archive with historical documents: - High-resolution scans of historical documents and works of art - Maximum quality required for scientific purposes - Increase to 3200x2400 or even 4096x3072 - Individual images can be 2–4 MB in size - For 10,000 archive images: 20–40 GB storage requirement - Quality is more important than storage costs

Scenario C – Mobile-first environment: - Mainly used on tablets and smartphones - Rarely access to large image versions - Reducing to 1024x768 saves storage - Medium-sized images (800x600) are used more frequently - Large version serves only as a backup for exceptional cases

For standard installations:1600x1200(proven standard for Full HD displays)

Reasoning: - Excellent image quality for typical use cases - Sufficient for detailed views on Full HD monitors (1920x1080) - Moderate file size: approx. 300–500 KB per image (JPEG) - Good compromise between quality and storage requirements - Suitable for simple print products (up to approx. DIN A5)

Exceptions:

High-resolution environments:2048x1536 or 2560x1920 - 4K/5K monitors in use - Professional photo documentation required - Printing of reports and presentations planned - Archiving in the highest quality desired - Sufficient storage space and fast network connections available

Storage-critical environments:1280x960 or 1024x768 - Very large image volumes (>100,000 images) - Limited or expensive storage space - Backup times should be minimized - Mainly used on standard monitors - Print quality not required

Extreme quality requirements:3200x2400 or higher - Museum or archive applications - Scientific documentation - Professional photography management - Storage space plays a secondary role - IMPORTANT: Only if actually needed, as very storage-intensive

Tip: After making the change, test with a few representative images: 1. Upload 10–20 typical photos 2. Check the actual file size of the large versions 3. Test zoom functions and detail display 4. Estimate the storage requirements for your expected image volume 5. Adjust as needed

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