All Constants

Default number of allocated threads for processing

Default quality of compression of the alpha channel

Default timescale of the media (in Hz), not relevant for images

Common format for image compression with half the resolution for chroma channels (ignored when used with AVIF_BGRA_LOSSLESS_QUALITY)

AOM stands for Alliance for Open Media, which is the consortium that developed the AV1 codec.

This decoding-only codec is focused on decoding AV1 content.

This encoding-only codec is designed to offer efficient encoding of video content.

This is a monochrome format where only the Y (luminance) component is used, and there are no U and V (chrominance) components.

This format also uses the YUV color space but with 4:2:2 chroma subsampling.

Current version expressed as an integer with each part multiplied by 100

this letter is to be combined to the left of previous letter

implicit end of paragraph (paragraph spacing below due to end of text)

joins to the letter on the left (possible for joining type L and D)

line break <br>

start of a multichar (letter + non spacing marks, non spacing marks)

script is written from right to left (arabic, N'Ko...)

does not affect ligature

Alias to glow that express that this blend mode masks the part where the top layer is black

Alias to express that dark overlay is simply an overlay with gamma correction

This color [#000001] looks just like black.

Palette: Lists the colors in the image palette.

Chromaticity: Provides the chromaticity coordinates

Standard RGB Color Space: Indicates that the image uses the sRGB color space.

Compressed Textual Data: Similar to tEXt but the text is compressed.

ICC Profile: Contains an ICC color profile.

Offset: Gives position on a printed page.

Gamma factor: Specifies gamma correction.

International Textual Data: Allows embedding text data with character encoding information.

Physical Scale: Provides physical scale information of the image.

Histogram: Provides a histogram of the color usage in the image.

Textual Data: Stores text data associated with a keyword.

Minimum dot product, corresponding to approximately 45 degrees, to form a curve instead of an angle

Value indicating that there is an empty TPointF structure.

A constant representing an empty rectangle with all coordinates set to 0

String constants for TGifBackgroundMode

wait for user input at this frame (ignored)

transparent color index is provided

image data is interlaced

global palette colors are sorted by importance

D65 illumination per wavelength

Maximum length for a PNG chunk

entry is a directory

the stream is compressed

Draw a half-disk at the end of the line.

Segments are joined by extending them up to their intersection.

Pen is not drawn

Pattern is a dash of length 3 followed by a dot of length 1, separated by a gap of length 1

Pen is dotted.

ResolutionInfo structure

Layer comps

Auto save file path

Border info

Optional - Caption string

XMP data block

RGB image

Superceded by PSD_NEW_COLOR_SAMPLER for ps CS3 and higher - Global angle

Greyscale and multichannel transfer functions

Onion skins

Hue, Saturation, Brightness

Pantone matching system (Lab)

Grey scale

Toyo 88 colorfinder 1050 (Lab)

Image color spaces

Focoltone color system (CMYK)

Sheet discloser

Multichannel image

Duotone transfer functions

Duotone image information

Obsolete

Exif data block 1

Thumbnail resource

Print flags

JPEG quality

Superceded by PSD_NEW_COLOR_SAMPLER for ps CS3 and higher - Color samplers resource

Unicode alpha names

Imageready variables

IPTC-NAA record (IMV4.pdf)

Obsolete

Workflow URL - Unicode string

Pixel aspect ratio

Print scale

Obsolete

Print style

Color sampler resource for ps CS3 and higher PSD files

Effective black & white values for dot range

Layers group info

Auto save format

Print scale

First plugin resource

Lightroom workflow

HDR toning information

Print information added in ps CS5

Obsolete - ps 2.0 indexed color table

Pixels / inch

Indexed image

Global altitude

Grid & guide info

Measurement scale

pica ( 6 pica = 1 inch)

points (72 points = 1 inch)

Copyright flag

URL list - unicode

Mac NSPrintInfo

Layer state info

Custom pattern used

String constants to represent TRadialBlurType values

Horseshoe shape of visible colors at 2° (illuminant E)

types always imported from Classes

Offset of the alpha channel

Offset of the blue channel (when BGRA)

Offsets of the different channels in a pixel

arabic letters

record separator, kind of equivalent to paragraph separator

section separator

equivalent of CRLF characters that split lines into top-level bidi blocks

maximum nesting level of isolates and bidi-formatting blocks (char bidi level can actually be higher due to char properties)

byte order mark

number of pixels to output

equivalent of </p>

equivalent of <br>