Picture methods

Online Documentation   -   Statistics   -   FAQ   -   Plugin Parts (All, Dependencies)   -   Class hierarchy

New in Version 22.2 22.3 22.4 22.5 23.0 23.1 23.2 23.3 23.4 23.5 24.0 24.1

The list of the   topics,   classes,   interfaces,   controls,   modules,   global methods by category,   global methods by name,   screenshots,   licenses   and   examples.

Platforms to show: All Mac Windows Linux Cross-Platform

Back to Picture class.

Picture.HashMBS as UInt32

Type Topic Plugin Version macOS Windows Linux iOS Targets
method Graphics & Pictures MBS Picture Plugin 12.1 ✅ Yes ✅ Yes ✅ Yes ✅ Yes All
Calculates CRC 32 over all pixels.
Example
dim p as new Picture(100, 100, 32)

dim hash1 as UInt32 = p.HashMBS

// one black pixel
p.Graphics.Pixel(50, 50) = &c000000

dim hash2 as UInt32 = p.HashMBS

MsgBox hex(hash1)+" "+hex(hash2)

You can use hash to see if two pictures have 100% identical pixel values. Changing just one pixel should give different number.
Does not include alpha channel or mask for the hash, but only RGB channels.

Some examples using this method:

Blog Entries

The items on this page are in the following plugins: MBS Picture Plugin.


💬 Ask a question or report a problem