Using Chrome AI to Summarize Comic Books
Briefly

Using Chrome AI to Summarize Comic Books
"Remember that my web demo handles you dropping a .cbr or .cbz file onto the web page, checking the contents of the archive, and then using the respective library ( zip.js or Unarchive.js) to extract one image a time. My code figures out the total number of pages (images) and uses simple buttons to let you navigate through them. I say simple, but honestly it was a bit complex to set up, so again, I definitely recommend reading that previous post."
"First, the Prompt API, and specifically, the multimodal capabilities that allow us to examine images. The context window doesn't allow us to pass all the images in a comic book, so we'll use the API to analyze each page of the book, one by one, and generate a summary of what's on the page for each. Given our pages are being turned into summaries, we can use the Summarizer API to create a summary of summaries, which in theory, cover the entire book."
A web app accepts .cbr and .cbz files dropped onto a page and extracts images using zip.js or Unarchive.js. The app determines total page count and provides navigation buttons. Each page image is analyzed using the Prompt API's multimodal capabilities to generate a page-level summary. Pages are processed sequentially because of context window limits. The Summarizer API aggregates page-level summaries into a single book-level summary. displayComic handles UI setup after archive parsing. The code integrates client-side archive handling with on-device AI page analysis.
Read at Raymondcamden
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