Imagine you have digitized many books from your collections and made them available via Omeka S in a IIIF-compliant viewer. Naturally you would also like your users to search the full text contents of these books, as that is something they cannot do with a physical copy. This blog will describe the steps to make this possible in Omeka S by using a module that implements the IIIF Content Search API.

Prerequisites

Make sure you have taken the following actions before you start:

• Working Omeka S instance with IIIF modules enabled (see our previous post)
• Digitized book pages uploaded as... read more

1. Install and switch to ‘vips’ from ImageMagick for faster image processing in Omeka S.

Read more on: Power up! Optimize IIIF user experience

2. Use ‘Tiled tiff’ as the tiling method to ensure correct image display.

Read more on: Power up! Optimize IIIF user experience

3. Prefer JPEG quality 80 as the source image type for the best balance of performance, disk space usage, and viewing quality.

Avoid JPEG 2000 and uncompressed TIFF due to performance issues and high disk space consumption.

Read more on: Power up! Optimize IIIF user experience

4. Avoid relying on client-side annotations in the... read more

Introduction

When integrating IIIF capabilities into our Omeka S environment, we needed to choose the right viewer to ensure optimaluser experience for accessing digital collections. After extensive testing of the available options, we selectedMirador over Universal Viewer for a number of compelling reasons:

1. Faster Image Loading

Mirador outperformed Universa Viewer in loading high-resolution images, providing a smoother user experience.

2. Modern Interface

Its clean, modern design offers easy navigation and a visually engaging way to explore digital collections.

3. Advanced Features

Mirador supports useful tools like annotations, OCR overlays, and image adjustments (brightness, contrast),enhancing research capabilities.

Mirador Technical Considerations

Mirador allows users to... read more