I don’t have pretty much idea about the 32-bit depth image, but if you want a 24-bit depth then I think the best option is to convert your image into “x.png” format where x = name of the image. Because when we are dealing with.png images their BY DEFAULT bit depth is 24 bit means they are having (2^24 = 16777216) colour tones or shades.

In RGB images - 8-bit "mode" means three 8-bit channels of RGB data, also called 24-bit "color depth" data. This is three 8-bit channels, one byte for each of the R or G or B components, which is 3 bytes per pixel, 24 bit color, and up to 16.7 million possible color combinations (256 x 256 x 256).

A part of the PNG file structure holds pointers to 256 colors and then each pixel in the image gets its color from one of those pointers. Thus each pixel only consumes one bytem its 0-255 value pointing to its color on the palette. On the other hand, a 32 bit PNG is 4 bytes per pixel and each pixel can represent a different ARGB color value. Simply put, the file size of an image increases with bit depth because more color information is stored per pixel in an image having higher bit depth. For example: An image with a bit depth of 1 has pixels with two possible values: black and white. An image with a bit depth of 8 has 2 8, or 256, possible values. Also, I have an .png image which has Bit depth 32.

Png 32 bit depth

I want to convert a 32 bit image to a 24 bit without downloading any programmes (my boyfriend refuses to download anything potentially harmfull -in his opinion- and I can't change his mind). I have windows 7 and it only saves png images in 32 bit. I even downloaded a pic on 24 bit and when I converted it to 256x256 it saved it to 32 bit. The "bit depth" in PNG refers to the bits per sample, not bits per pixel. So "-depth 32" would mean 96-bit RGB or 128-bit RGBA, but you'd have to write to an image format that supports such large depth (not PNG, which supports only up to 16 bits/sample). When you save (or export) an image as a GIF or a PNG, you can select the bit depth of the resulting file.

We use this when we need transparency in our images.

Nuke works always in 32-bit, no need to define a working bit depth, only the PNG. 8 and 16 bit sRGB 8 bit Palette-based. Standard Web format. Supports

However, Fireworks provides an option for a PNG-32. Why? Well, Photoshop and Illustrator produce PNG-32’s if you choose full alpha transparency option on a PNG-24. It just doesn’t really inform the user that it is creating a PNG-32.

The difference between PNG8 and the PNG24 is, as the name of the formats suggests, that PNG8 only supports 8 bit colors, while PNG24 supports 24 bit colors. PNG32 does not actually have 32 bit colors, but rather it is just 24 bit colors, with an extra 8 bit alpha channel. We use this when we need transparency in our images.

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32bit PNG = 8 bits red, 8 bits blue, 8 bits green, 8 bits alpha. Photoshop automatically creates a 32bit PNG image if you save a 24Bit PNG that contains transparent areas. Share. The PNG (Portable Network Graphics) file format was created as a free, open-source alternative to GIF. The PNG file format supports eight-bit paletted images (with optional transparency for all palette colors) and 24-bit truecolor (16 million colors) or 48-bit truecolor with and without alpha channel – while GIF supports only 256 colors and a The difference between PNG8 and the PNG24 is, as the name of the formats suggests, that PNG8 only supports 8 bit colors, while PNG24 supports 24 bit colors. PNG32 does not actually have 32 bit colors, but rather it is just 24 bit colors, with an extra 8 bit alpha channel.
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Or share a video link showing these steps, if any. I'd like to convert a supplied 32-bit PNG (meaning 8-bits per channel over 4 channels: red, green, blue, and alpha.

I upload it to MATLAB with function Imread. The variable has 1456×1936 uint16 value.
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MNG is an extension to PNG that does; it was designed by members of the PNG Group. Technical details: PNG supports palette-based images (with palettes of 24-bit RGB or 32-bit RGBA colors), grayscale images (with or without alpha channel), and full-color non-palette-based RGB[A] images (with or without alpha channel).

I can only write 8-bit files, and 32-bit float exr's. Switching in octane Settings from PNG-8 to PNG-16, etc, seems to doing nothing.