Table of Contents
- 1 What is the difference between transparency and Alpha?
- 2 What is the difference between binary transparency and alpha transparency?
- 3 What is the difference between transparency and opacity?
- 4 What is an alpha layer in Photoshop?
- 5 Which formats in Photoshop that supports transparency?
- 6 What is the difference between opacity and transparency in CSS?
- 7 What format in Photoshop that supports transparency?
- 8 Is PNG alpha transparency?
- 9 What is the difference between alpha channel and transparency in Photoshop?
- 10 What is the difference between alpha and alpha channels in PNG?
What is the difference between transparency and Alpha?
The opacity-level describes the transparency-level, where 1 is not transparant at all, 0.5 is 50\% see-through, and 0 is completely transparent. Alpha Channel RGBA color values are an extension of RGB color values with an alpha channel – which specifies the opacity of the object.
What is the difference between binary transparency and alpha transparency?
Simple binary transparency is supported in the GIF format; one color from the indexed color palette is marked as the transparent color. Alpha transparency is supported in the PNG format; the transparency information is stored in a separate channel, the Alpha channel.
What is Alpha in transparency?
The alpha channel controls the transparency or opacity of a color. Its value can be represented as a real value, a percentage, or an integer: full transparency is 0.0, 0\% or 0, whereas full opacity is 1.0, 100\% or 255, respectively.
What is the difference between transparency and opacity?
In digital photography, transparency is the functionality that supports transparent areas in an image or image layer. Certain image formats do not support transparency. Opacity is the extent to which something blocks light.
What is an alpha layer in Photoshop?
An alpha channel in Photoshop is created as an additional channel alongside the RGB color channels and allows you to save the transparency settings of an image or selection. Alpha channels are used to save selections for later use or to share selection information between editing programs.
Does PNG support alpha channel?
PNG does not support alpha channels, only alpha transparency when you save it as PNG24. If you need to have Alpha channels in Photoshop you have to save as PSD. If you save as a 24bit png with transparent checked photoshop will save the png with transparent background (ie alpha transparency).
Which formats in Photoshop that supports transparency?
Background transparency, supported by the GIF and PNG formats, preserves transparent pixels in the image and allows the background of the web page to show through the transparent areas of your image.
What is the difference between opacity and transparency in CSS?
Opacity is a measure of how opaque an item is and transparency is a measure of how transparent it appears. Both work nearly the same way but at 100\% transparent, the element will be completely invisible, while with the opacity set to 100\% it be fully visible.
When adding transparency styles What is the difference between?
one ( opacity ) is a property; the other is the component of the value of a color property, such as background-color , box-shadow-color , or border-color . Most importantly, opacity affects the entire element it is applied to, whereas rgba affects only one aspect.
What format in Photoshop that supports transparency?
Is PNG alpha transparency?
Alpha channel support PNG images can contain alpha (transparency) information. Unlike GIF, which requires a particular color to be designated fully transparent, PNG allows the transparency of all pixels to take any value from fully transparent though partial transparency to full opacity.
What is alpha transparency in Adobe Fireworks?
In Adobe Fireworks, alpha transparency is most often used with the PNG32 format. In a PNG32 file, there are four bytes (8 bits per byte) for each color: (R)ed, (G)reen, (B)lue, and (A)lpha, which adds up to 32 bits per color (24 bits for color and 8 bits for opacity via the alpha channel.)
What is the difference between alpha channel and transparency in Photoshop?
When you open a PNG file with transparency in Photoshop, it is considered a single layer image. It is not a flat background image. Alpha channels can contain anything, while transparency is a specific channel relationship. You can have multiple alpha channels per document, but only one transparency channel.
What is the difference between alpha and alpha channels in PNG?
PNG specifies that the fourth channel in a file is transparency, and only transparency. When you open a PNG file with transparency in Photoshop, it is considered a single layer image. It is not a flat background image. Alpha channels can contain anything, while transparency is a specific channel relationship.
Is there an alpha transparency option for GIF files?
However, GIF files do not support alpha transparency, so the Index and Alpha options work exactly the same way. (I suppose that alpha transparency should not even be offered as an option for the GIF format, since GIF only supports index transparency.)