Tutorials Video

Russell Kirsch: The First Digital Image, 176 Pixels Square

By Infinite Creation · Profile

Historical photograph of Russell Kirsch.

At a Glance

Russell A. Kirsch (1929-2020) scanned a photograph of his three-month-old son Walden into the SEAC computer in 1957 as a 176×176 array of binary values, the first digital image. He spent his career at the National Bureau of Standards working on image processing and pattern recognition, and later argued that the square pixel had been a mistake.

Lived: 1929-2020, United States
Anchor year: 1957, the first digital image
Strand: overlooked

Career

The problem as it stood

Computers processed numbers. There was no way to get a picture into one, and therefore no possibility of computers analysing, transmitting or storing images at all.

What he actually did

Kirsch built a rotating-drum scanner for SEAC, one of the earliest stored-program computers, and captured a photograph as a 176×176 grid of binary values: no greyscale, just black or white per cell.

How it worked

The scanner sampled the photograph at intervals in two dimensions and thresholded each sample. The size was set by SEAC's memory. Sampling a continuous image spatially is the two-dimensional version of what Nyquist described for signals in time, and the same consequences follow: undersampling produces spatial aliasing, visible as moiré.

What it made possible

Digital image processing as a field, and everything downstream: JPEG, digital broadcasting, medical imaging, computer vision. The image of his son is in the Library of Congress and appeared in Life magazine's list of images that changed the world.

What happened to him

He continued at the National Bureau of Standards on image processing and pattern recognition. Late in life he publicly regretted choosing square pixels, arguing that other tilings represent curved edges with fewer samples, and worked on variable-shape pixel schemes. He died in 2020 of Alzheimer's complications.

Where the credit landed

Kirsch is credited for the first digital image and largely forgotten otherwise, and his own assessment is worth recording: he considered the square pixel an arbitrary early choice that became permanent because everything built on it. That is a fair description of a great deal of this corpus, 35mm, 1.33:1, interlacing, one volt per octave, 44.1 kHz. Early decisions become infrastructure and stop being decisions.

Known For

The first digital image was 176×176, one bit per pixel, sized by the computer's memory.
Spatial sampling has the same aliasing consequences as sampling in time: moiré is the visible form.
Kirsch himself regarded the square pixel as an arbitrary choice that became permanent.

Knowledge Base

What You'll Learn

Every digital image descends from a picture of a baby, thresholded to black and white.

Arbitrary choices that became infrastructure

This corpus is full of them. Dickson set 35mm and 1.33:1 for practical reasons in the 1890s and both governed image geometry for a century. Schröter's interlacing is still in broadcast standards. Moog's one volt per octave persists in modular synthesis. 44.1 kHz was chosen partly to suit video recorders used as digital audio stores. None was optimal in principle. All became permanent because the cost of changing exceeded the benefit once anything was built on them.

Where This Fits

The first digital image is the start of digital capture, a link followed in A History of Broadcast Technology.

FAQ

Q: What was the first digital image?
A: A 176×176 pixel scan of a photograph of Russell Kirsch's infant son Walden, made in 1957 on the SEAC computer. It was one bit per pixel: black or white, with no greyscale.

Q: Why did Kirsch regret square pixels?
A: He argued that other tilings can represent curved and diagonal edges with fewer samples, and that the square grid was an arbitrary early convenience that became permanent because everything was built on it.

Sources

The paper was checked against its publication record. Checked 20 August 2026.

R. A. Kirsch, L. Cahn, C. Ray and G. H. Urban, Experiments in Processing Pictorial Information with a Digital Computer. Presented at the Eastern Joint Computer Conference of 9 to 13 December 1957 and printed in the proceedings at pages 221 to 229. This is the work the 1957 anchor year above refers to. Kirsch is first of four named authors, alongside L. Cahn, C. Ray and G. H. Urban.