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"Developing an Image Pipeline and Handling Metadata Challenges"

Jan 23, 2024 - 3:28pmSummary: The base of an image pipeline has been created, which effectively processes image metadata, despite potential over-reliance on EXIF data. It extracts latitude, longitude, and creation time, performs reverse geocoding, and uses this data along with machine learning models such as GPT to generate image captions and titles. Challenges include handling full-size image serving and considering whether to downscale images or not, as well as deciding on the best hosting approach. Additionally, thoughts are being given to potentially storing extensive metadata for richer content and reevaluating the pipeline as a series of independent steps or microservices, which could aid in both usage versatility and in enabling machine learning models to programmatically define step sequences. Setting up systems requires basic functionalities to work efficiently to demonstrate their value. Integrating and standardizing pipelines is necessary, such as unifying metadata handling across audio and images. However, the current integration is not clean, implying a need for refinement. There's an idea to create a step library— a collection of small, useful utilities that can function well when the rest of the system operates smoothly.

Transcript: I built the image pipeline today, at least the base of it. One thing that it still needs is to embed, but beyond that, I think more or less it works, which is cool. So with the image pipeline, right now the steps are pretty simple. First, we go get some metadata from the EXIF information from the image, if it exists. I probably should, you know, not super rely on EXIF, but that's whatever for now, doesn't really matter. It's mostly photos that I care about. So all my photos are going in, the EXIF is getting processed. I'm specifically pulling out latitude, longitude, and the image creation time. I am then taking the latitude and longitude and reverse geocoding it and calling an LLM on top of it just to process the data just a little bit. And then after I've done that, I pass it into GPT for vision and I generate a caption for the image. And then after I've passed it into vision, I generate a title so it can go on the webpage easily. And really it's as simple as that. So that's kind of where we are today. And a few things learned along the way. One thing is like serving images in full size is annoying. And also I am hesitant to build an entire like image downscaling, rescaling pipeline. That seems like a lot of work. So figuring out how to host this is gonna be very important very quickly. However, for now it doesn't matter. There are some other things that I'm thinking about. One being like discovered along the way, one of the things that I'm curious about is like should I just be storing a bunch of data in the metadata.json file, like any metadata that's collected and giving that to GPT to figure out what to do with. Specifically like the EXIF information contains a lot of interesting things that like if I wanted to build a photography page, like I might want the shutter speed and aperture, right? And that's stuff that I'm not covering right now. The other things are thinking about the pipeline process and thinking about each of these steps as almost completely independent and very much kind of like, I guess OpenAI's function calls in some way. But more like val.town where these things just output something and then you might do another thing with that. And generally like the order is probably deterministic and you know what it is going to be at least on the ingestion step. But also this could be helpful for LLMs to begin to program the steps itself. And it also passes the data off from a central location to a bunch of microservices, which could be useful, could be not useful. Really depends on the specific user and use case, I think. And that's also something I'm thinking about as I'm starting to depend on more and more APIs and X and Y. It's a lot to set up, it's a lot to set up, so like really need the basic things to work really well to show that it's worth setting these things up, yeah. And then there's the thing of collapsing the pipelines and making them common. I already did metadata across audio and images that should share the same step, but it's just not very clean right now, so it is kind of feeling like you might want to have like a step library. These are the library of like little small utilities that you can use, assuming everything else works nicely.

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