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vision

Last Week on My Mac: Tahoe’s elephant

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All of us rely on tone (brightness, lightness) to interpret what we see. Visual artists have gone to great lengths in tonal modelling, but macOS Tahoe offers only bleached-out white or blacked-out black.

October 12, 2025 Macs, Technology

Reading visual art: 159 Voyeur, modern

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King Candaules killed, Phryné acquitted of impiety, Musidora watched while bathing, a nude on a beach, and Bonnard’s partner Marthe.

September 18, 2024 General, Life, Painting

Reading visual art: 158 Voyeur, classical

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Polyphemus watching the naked Acis, King David watching Bathsheba, two old elders watching Susanna bathing, each of them voyeurs.

September 17, 2024 General, Life, Painting

Gérôme’s Vision: Paintings about vision, truth and photography 2

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Paintings in which he helped set the thumbs up and down sign, and painted himself making a sculpture he had previously painted in a painting as a sculpture.

November 19, 2023 General, Life, Painting

Gérôme’s Vision: Paintings about vision, truth and photography 1

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From an early painting of the blind Michelangelo to that of a nude courtesan before a Greek court, vision and visual fidelity was his recurrent theme.

November 18, 2023 General, Life, Painting

Explainer: Machine learning

Are you worried about your Mac learning about you and what you do? Machine learning isn’t well understood, so here’s an introduction.

July 16, 2022 Macs, Technology

Last Week on My Mac: Is Look Up destined for CSAM?

Remember Apple’s failed attempt to detect CSAM in images? Would that have been similar to the way that Visual Look Up works? Is this the thin end of the wedge?

March 20, 2022 Macs, Technology

Seeing History: Towards a timeline

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An illustrated timeline and overview of how the human visual environment, and perception of it, has changed from ancient times to virtual reality.

January 25, 2018 General, Life, Painting, Technology

Seeing History: Don’t believe your eyes – visual fidelity and belief

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In the past, people have accepted the reality of mythical creatures, such as winged angels, unicorns, and dragons. When did we start being more objective in our belief of what we see?

January 18, 2018 General, Life, Painting, Technology

Seeing History: Is perspective learned or natural?

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If Brunelleschi had introduced Cubism instead of perspective projection, would that have altered human visual perception?

January 10, 2018 General, Life, Painting, Technology

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