No. 06 — AI Tools · Cloud HDPro · on our GPU

A family album, all in color.

Most family archives are a box, not a project — a few hundred prints, half of them unlabelled. This page is about working through one sensibly: what to colorize, what to leave, and how many Cloud HD runs an album actually costs. Each photo is uploaded for its own run, deleted when that run finishes, and never used to train anything.

Pro · Cloud HDDeleted on completionUp to 25 MB · 24 MP
Black-and-white photograph of a long-haired tabby cat, before colorization
Sample — processed with ddcolor-modelscope 8565d1f7c686
Colorize a family photoCloud HD · our GPU

How it works

  1. Upload one scan at a time — JPEG, PNG or WebP, up to 25 MB and 24 megapixels.
  2. DDColor runs on our GPU for that photo only, then the upload is deleted.
  3. Save the PNG next to the original scan. One run of your monthly Cloud HD allowance per photo.

This page is the photo colorizer, tuned to the arithmetic and the housekeeping of a whole family archive.

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Solutions by use case

Colorize Family PhotosPro, on our server

Triage before you spend a single run. An inherited box is rarely uniform: a dozen studio portraits, a run of holiday snaps, and a long tail of blurry distant groups nobody can identify. Colorization rewards faces at a usable size and punishes everything shot from across a field, because grey with no discernible subject gives DDColor nothing to anchor on and it returns a wash of muted browns and greens. Lay the box out, mark the twenty or thirty pictures that people actually ask about, and start there. The rest can wait — the allowance resets every month and nothing in the box is getting older any faster.

An album is arithmetic, not a single decision. Pro Monthly carries 150 Cloud HD runs a month, Pro Annual 200, with a 30-runs-per-hour ceiling and no rollover past the 1st. A two-hundred-photo album is therefore two evenings on Annual, or a month and a bit on Monthly, and that is fine — it is also two evenings of looking at each result properly instead of accepting a folder of automated output you never checked. If a run fails it is not charged, so a cold start or a dropped connection costs you time and nothing else. Prices exclude tax, and plan changes and cancellations go through contact@minipx.com so a person handles them.

Capture the whole set the same way, or the set will not match. Each run is independent — the model has no memory of the photo you did five minutes ago — so a consistent input is the only lever you have on a consistent output. Scan the whole album in one session at one setting, or photograph every print in the same daylight at the same angle. Trim scanner edges with the crop tool and shrink oversized scans with the compressor if any of them exceed the 25 MB limit; both run on your own machine, so they cost nothing and send nothing anywhere. When faces are soft as well as grey, the face restorer can colorize in the same pass, and the portrait page covers what to expect from skin tones specifically.

These are relatives, so the handling matters. Colorization is the one part of this workflow that leaves your device: the photo is uploaded to our Cloud HD server for that run, encrypted in transit, processed in the United States on Cloudflare R2 storage and a Modal GPU, then deleted when the run finishes and in all cases within 24 hours. It is never used to train anything and no human at MiniPx looks at it. Every other tool you touch on the way — cropping, compressing, converting — never uploads at all. And keep the originals: the colorized PNG is for the mantelpiece and the family group chat, while the untouched scan is the record your grandchildren will want.

How it works

  1. Sort the box first: Pull out the photos with clear faces and decent contrast. Those repay a run; distant group shots and dark interiors rarely do.
  2. Digitise in one session: Scan at 600 DPI, or photograph each print square-on in soft daylight. Consistent capture gives consistent colour across the set.
  3. Colorize one at a time: Upload each scan — up to 25 MB and 24 megapixels. DDColor returns a PNG at the same resolution, one Cloud HD run each.
  4. File in pairs: Save every colorized PNG beside its original scan with a name that says which is which, then back the folder up.

Frequently asked questions

How many family photos can I colorize in a month?
Pro Monthly includes 150 Cloud HD runs a month and Pro Annual includes 200. A plain colorize is one run. The allowance resets on the 1st (UTC) and does not roll over, and there is a ceiling of 30 runs an hour so a very large album takes a few sittings. A run that fails is not charged against the allowance.
Can I upload a batch of photos at once?
The colorizer takes one photo per run — it is a GPU job, not a queue you drop a folder into. In practice that suits album work: you look at each result, decide whether to keep it, and move on. Batch processing on MiniPx is for the on-device tools, where there is no per-run cost.
Which pictures in a box are worth colorizing first?
The ones with faces at a decent size and reasonable contrast. Group shots taken from far away, very dark interiors and photos where the subject is smaller than a thumbnail give the model little to work with. Start with portraits and close-range family groups; those return the most convincing colour per run.
Should I keep the black-and-white versions?
Yes, always. The scan is the archival record and the colorized PNG is a derivative for sharing and printing. Store both, and name them so the difference survives being emailed around the family — something like 1958-nan-garden-scan.jpg and 1958-nan-garden-colorized.png.
Are relatives’ faces used to improve the model?
No. Uploads are used for your run and nothing else — never for training, never for evaluation, never shown to anyone. The photo is encrypted in transit, processed in the United States, and deleted when the run finishes and in all cases within 24 hours.
Can two people in the household share one allowance?
A Pro account carries its own allowance and can be signed in on up to five devices, so a household working from one account draws on one pool of runs. Plan the album accordingly, and remember that cancelling or changing a plan is handled by email to contact@minipx.com rather than a button.