Perspective Optical Illusions: The art of circling the square

When bending the sides of a square structure forward, each edge forming a sine wave shape, the structure reveals a circle when viewed from the reverse angle. This illusion plays with perspective, specifically utilizing an effect known as “anamorphosis“.

Anamorphosis refers to a artistic technique that uses perspective to create distorted images that can only be viewed correctly from a specific angle.

Layering Up: A Creative Look at AI

Ever wondered how Convolutional Neural Networks (CNNs) process images? Imagine putting a photo through a pasta machine… TWICE! This creative experiment, inspired by artist Kensuke Koike, demonstrates how CNNs break down data into smaller, layered features, just like the pasta machine creates four clear images from a single input.

© Kensuke Koike

The Impossible Absence

In this naturalistic painting, there is no human being. And yet… Even when a painting appears to be empty of human presence, there is the inescapable human presence of the one who painted it.
Your gaze on the painting merges with the artist’s gaze. You see, through the emotions and the eyes of the one who spent hours studying this landscape. Art is a gift, it’s a “present”—the word is well chosen.
The artist becomes disembodied, transcending the physical, to offer you a front-row seat on the stage of his creation, where you’re invited to immerse yourself in his illusory representation of the world.

Painting by Guo Xi

Two Mind-Bending Aquariums

At first glance, they seem to be the same, but take a closer look… Can you spot what’s wrong?

I’ve always been fascinated by impossible figures, which psychologists call “undecidable figures”, meaning visual representations that challenge our perception and understanding of reality. Since the late 1980s, I’ve continued to explore this field and create new illusions, producing a series of drawings that play with the third dimension, manipulating perspectives and proportions to create original visual effects.

My work draws inspiration from two masters of optical art and impossible objects: Josef Albers and Oscar Reutersvärd. Their innovations and creations have always inspired and motivated me to continue my research in this field.

The Red Wine Color Illusion

Does the color of wine change when poured into a glass?
Although it may appear darker, the red shade remains the same. This visual trick is a result of the Munker-White illusion—where our brain perceives colors differently depending on their surrounding context.

If you’re fascinated by puzzles like this, reach out to my syndication agent to feature them in your publication.

This op art piece is also available as prints and canvases in my online gallery.

Quando l’arte incontra la scienza: l’enigmatica Moona Lisa

Sono felice di condividere che la mia opera congiunta Moona Lisa, realizzata in collaborazione con l’astrofotografa Marcella Giulia Pace, è ora esposta presso il Dipartimento di Fisica e Astronomia dell’Università di Firenze. Potete scoprire di più su quest’opera qui: Moona Lisa – UniFi. Moona Lisa sarà inoltre parte della mostra permanente di Enlighting Mind, un’esposizione dedicata alla connessione tra arte e scienza.

Il prossimo 13 dicembre, Marcella terrà un seminario al dipartimento dal titolo preliminare “Moona Lisa e l’enigma della luna”, dove esplorerà il mistero e la bellezza della nostra opera attraverso la lente dell’astrofotografia.

Per chi fosse interessato ad acquistare l’opera sotto forma di stampa, potete farlo nella mia galleria online: Redbubble.

The Red Mesh Ruse

With Christmas around the corner, mandarins and oranges start popping up everywhere. In supermarkets, you’ll often find oranges wrapped in red mesh bags. But that choice isn’t just for looks—it’s a clever sales trick.

Why red mesh? It’s a simple way to make oranges seem more appealing to our eyes and brains, even if the fruit is a bit lackluster. Scientists have studied this phenomenon, which they call the “Confetti illusion.” Arriving fashionably late to the scene, they discovered the visual effect caused by the red mesh bag. They’ve given it the grand name “perceptual ripening of oranges,” but let’s be real—it’s just color assimilation doing the work.

Color assimilation is when different hues blend in our perception, changing how we see things. In this case, the red mesh combines with the actual color of the fruit (fig. A), making the oranges look brighter and more appealing (fig. B)—a little trick on the eyes.

Scientists recently confirmed what artists and salespeople have known for centuries: color assimilation can shape how we see things, especially in shopping. The illusion works because most people trust what they see without taking a closer look. But once out of the red mesh, the oranges often aren’t as shiny or ripe as they first appeared.

Curious to learn more about how color influences perception? Check out my color research and visual experiments on my Behance page.

Triangles of Beauty

Introducing my latest creation, Triangles of Beauty—a minimalist mosaic that blends geometric precision with visual intrigue. This op art piece showcases a striking arrangement of triangular shapes in sepia tones, merging rich shades of brown and beige. The triangle, a timeless symbol, embodies the balance of masculine and feminine energies, forming a harmonious third element that transcends duality. It represents strength, unity, and the divine—a visual echo of the trinity, where individual components unite into something greater.

Step back and let the patterns unfold to reveal the depth within this thought-provoking piece.

This thought-provoking op art piece is available in my online galleries:

· Redbubble

· Fine Art America

Moona Lisa

In 1997, I reimagined Leonardo da Vinci’s Mona Lisa through a system of 142 color beads, each precisely positioned at the nodes of an invisible two-dimensional triangular grid. Up close, the pattern appears abstract, yet from a distance, the arrangement resolves into the familiar features of the portrait, inviting viewers to recognize the image through perception and suggestion.

hidden mona lisa
Hidden Mona Lisa (1997), © Gianni A. Sarcone
Continue Reading

Stereotypes in Visual Perception


Our unconscious biases and stereotypes can influence our brain’s visual systems, leading us to perceive things and people in ways that align with these stereotypes.

Seeing nude women? Before assuming it’s pornography, reconsider… It’s fascinating how our minds are conditioned and stereotyped: in the first image, we instantly envision women in Adam and Eve attire, whereas the second presents a different reality.

©Gianni A. Sarcone