README

programmatically/logo-wall is a small PHP library for measuring and normalizing logo dimensions so logos render more consistently in a logo wall/grid. It is based on a React project called LogoSoup by Rostislav Melkumyan (Sanity Labs).

It can:

• Detect visible content bounds inside transparent/white-padded images
• Calculate a visual center and optional pixel density
• Produce normalized width/height values from measured logos
• Optionally return a cropped PNG data URI of content-only pixels
• Read raster logos plus SVG inputs

Requirements

• PHP ~8.1
• ext-imagick

Installation

composer require programmatically/logo-wall

Usage

<?php

use Programmatically\LogoWall\DTO\LogoSourceInput;
use Programmatically\LogoWall\DTO\NormalizeOptions;
use Programmatically\LogoWall\LogoWallNormalizer;

$logos = [
    new LogoSourceInput(__DIR__ . '/logos/acme.png', 'Acme'),
    new LogoSourceInput(__DIR__ . '/logos/bolt.webp', 'Bolt'),
];

$options = new NormalizeOptions(
    baseSize: 48,
    scaleFactor: 0.5,
    contrastThreshold: 10,
    densityAware: true,
    densityFactor: 0.5,
    cropToContent: true,
);

$normalized = LogoWallNormalizer::normalizeLogos($logos, $options);

foreach ($normalized as $logo) {
    printf(
        "%s => %dx%d\n",
        $logo->alt ?: basename($logo->src),
        $logo->normalizedWidth,
        $logo->normalizedHeight,
    );

    // When cropToContent=true, this may contain a "data:image/png;base64,..." value.
    // $logo->croppedSrc
}

NormalizeOptions Defaults

• baseSize: 48
• scaleFactor: 0.5
• contrastThreshold: 10
• densityAware: true
• densityFactor: 0.5
• cropToContent: false

Development

composer install
vendor/bin/phpunit
vendor/bin/phpstan analyse

Contributions

Contributions are welcome! Please submit issues and pull requests to the GitHub repository.