From efc4446c339110b61ae7a21d23240bd08500a373 Mon Sep 17 00:00:00 2001 From: Tyler Perkins Date: Wed, 23 Feb 2022 13:00:01 -0500 Subject: [PATCH] Update for 23-02-22 13:00 --- tech/.AI.wiki | 3 +++ tech/.JPEG.wiki | 3 +++ tech/.PNG.wiki | 3 +++ tech/CRT.wiki | 7 +++++++ tech/YUV.wiki | 2 +- tech/graphics.wiki | 20 ++++++++++++++++---- tech/raster_image.wiki | 4 ++++ tech/vector_image.wiki | 7 +++++++ 8 files changed, 44 insertions(+), 5 deletions(-) create mode 100644 tech/.AI.wiki create mode 100644 tech/.JPEG.wiki create mode 100644 tech/.PNG.wiki create mode 100644 tech/CRT.wiki create mode 100644 tech/raster_image.wiki create mode 100644 tech/vector_image.wiki diff --git a/tech/.AI.wiki b/tech/.AI.wiki new file mode 100644 index 0000000..3dc5005 --- /dev/null +++ b/tech/.AI.wiki @@ -0,0 +1,3 @@ += .AI = + +A .AI file is an adobe illustrator file, it is a vector image file diff --git a/tech/.JPEG.wiki b/tech/.JPEG.wiki new file mode 100644 index 0000000..9eef6b6 --- /dev/null +++ b/tech/.JPEG.wiki @@ -0,0 +1,3 @@ += .JPEG = + +A .JPEG file is a lossy [[raster_image]] filetype. diff --git a/tech/.PNG.wiki b/tech/.PNG.wiki new file mode 100644 index 0000000..142d35b --- /dev/null +++ b/tech/.PNG.wiki @@ -0,0 +1,3 @@ += .PNG = + +A .PNG file is a [[raster_image]] file that is loseless diff --git a/tech/CRT.wiki b/tech/CRT.wiki new file mode 100644 index 0000000..6dbc267 --- /dev/null +++ b/tech/CRT.wiki @@ -0,0 +1,7 @@ += CRT = + +A CRT is a cathode Ray Tube display. + +1) An electron gun emits a beam of electrons (cathode rays) +2) Delectron beam passes through a declection chamger +3) Hits a phospherous coating on the screen and lights up as screen diff --git a/tech/YUV.wiki b/tech/YUV.wiki index 2feabcb..ae31532 100644 --- a/tech/YUV.wiki +++ b/tech/YUV.wiki @@ -5,7 +5,7 @@ accounts for the way human perception works. YUV is used in the PAL composite color video standard. The 'Y' pertains to the luma component, or how bright the color is. The -two chrominance components called U (blue) and V (red). +two chrominance components called U (blue) and V (red). Luminance is Y and luma is Y', where the prime sybmol denotes gamma correction. Luminance is physical linear space brigtness, while luma is precieved diff --git a/tech/graphics.wiki b/tech/graphics.wiki index fbf52dd..0f9efb9 100644 --- a/tech/graphics.wiki +++ b/tech/graphics.wiki @@ -20,21 +20,33 @@ guidelines for their use (91) == Graphics principles == - - === UI design process === * [[task_decomposition_approach]] -== Colorspaces == +== Images == _Here begins the technical stuff_ +=== Image formats === + +==== [[vector_image]] ==== + +[[.AI]] + +==== [[raster_image]] ==== + +[[.PNG]] +[[.JPEG]] + +=== Colorspaces === + * [[YUV]] * [[RGB]] +== Displays == - +* [[CRT]] == Also see == diff --git a/tech/raster_image.wiki b/tech/raster_image.wiki new file mode 100644 index 0000000..c7d09c3 --- /dev/null +++ b/tech/raster_image.wiki @@ -0,0 +1,4 @@ += Raster image = + +A Raster image is a type of image where data is stored as pixels with color +information. diff --git a/tech/vector_image.wiki b/tech/vector_image.wiki new file mode 100644 index 0000000..b418ccc --- /dev/null +++ b/tech/vector_image.wiki @@ -0,0 +1,7 @@ += vector image = + +A vector image is an image that is created using a series of forumlas +describing the image's lines and colors, rather than a [[raster_image]] where +pixels are described + +Vector images are mostly used for logos.