Dynapik offers a free online tool to change image types - no need to download anything. It's quick and easy to use. You can change your PNG24 images to CIN format. This tool works for both professionals and casual users. Convert your images to CIN in seconds.
PNG-24 (24-bit RGB)
The standard for opaque, true-color lossless images on the web.
PNG-24 is the standard version of the PNG format for opaque, full-color images. It supports 24-bit color depth, which allows for over 16 million distinct colors (True Color)—the same color range as a standard JPEG. Unlike JPEG, however, PNG-24 uses lossless compression. This means it preserves every single pixel exactly as it was created, with absolutely no blurring or artifacts. This makes PNG-24 the ideal choice for complex graphics, screenshots, and detailed diagrams where quality is paramount and transparency is not needed. Note that while 'PNG-24' is often used to refer to any true-color PNG, strictly speaking, it refers to the RGB variant without an alpha channel. If you need transparency, you are technically using PNG-32 (RGB + Alpha).
A PNG-24 image consists of three color channels: Red, Green, and Blue. Each channel uses 8 bits of data per pixel, resulting in 24 bits total (8+8+8). This allows for 256 levels of intensity for each primary color, combining to produce 16,777,216 possible colors. Because it lacks an alpha channel, every pixel in a PNG-24 file is fully opaque. While the PNG specification allows for a 'tRNS' chunk to define a single specific color as transparent (similar to GIF), this is rarely used in modern web design in favor of the full alpha transparency found in PNG-32.
PNG-24 was part of the original PNG 1.0 specification released in 1996. It was designed as a direct, patent-free competitor to JPEG for lossless image storage. While JPEG won the war for photographs due to its superior compression ratios, PNG-24 became the standard for screenshots, diagrams, and digital art where preserving exact pixel values was more important than file size.
Kodak Cineon
A pioneering 10-bit logarithmic format designed by Kodak for digital film scanning and mastering.
The Cineon format (.cin) was developed by Kodak in the early 1990s as part of their Cineon Digital Film System. It was designed to capture the full dynamic range of film negatives. Unlike standard linear image formats, Cineon stores data in a 10-bit logarithmic density format, which closely mimics the response of film to light. This allows it to preserve highlight and shadow details that would be lost in linear 8-bit formats.
Cineon files use 10 bits per color channel (Red, Green, Blue), packed into 32-bit words (with 2 bits of padding). The key feature is the logarithmic encoding: pixel values represent printing density rather than linear brightness. A value of roughly 95 represents 'D-min' (clear film base), and the values scale up to represent increasing density. This allows the format to store a dynamic range that exceeds standard video formats.
Introduced in 1993, the Cineon system was the first end-to-end 4K digital intermediate workflow for motion pictures. While the hardware system was discontinued in 1997, the file format became the industry standard for visual effects and digital mastering until it was eventually superseded by the more flexible DPX (Digital Picture Exchange) format, which is directly based on Cineon.
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