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ascii-image-converter
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Removed bloat and improved function comments

This commit is contained in:
Zoraiz 2021-05-12 15:13:05 +05:00
parent 1bc953f59e
commit 42399c299e
2 changed files with 13 additions and 13 deletions
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14
image_manipulation/ascii_convert.go
View File

@ -106,10 +106,11 @@ var asciiTableDetailed = map[int]string{
// For each individual element of imgSet in ConvertToASCIISlice() // For each individual element of imgSet in ConvertToASCIISlice()
const MAX_VAL float32 = 65535 const MAX_VAL float32 = 65535
// Converts the 2D uint32 slice of image data (each element being each pixel of shrinked image) // Converts the 2D uint32 slice of image data (each value representing each pixel of image)
// to a 2D string slice with each pixel value being compared to a map of hardcoded ascii characters. // to a 2D string slice with each string having an ASCII character corresponding to
// the original uint32 value.
// //
// This function contains 69 characters // Values are compared to 69 ASCII characters
func ConvertToAsciiDetailed(imgSet [][]uint32) [][]string { func ConvertToAsciiDetailed(imgSet [][]uint32) [][]string {
height := len(imgSet) height := len(imgSet)
@ -140,10 +141,11 @@ func ConvertToAsciiDetailed(imgSet [][]uint32) [][]string {
return result return result
} }
// Converts the 2D uint32 slice of image data (each element being each pixel of shrinked image) // Converts the 2D uint32 slice of image data (each value representing each pixel of image)
// to a 2D string slice with each pixel value being compared to a map of hardcoded ascii characters. // to a 2D string slice with each string having an ASCII character corresponding to
// the original uint32 value.
// //
// This function contains 10 characters // Values are compared to 10 ASCII characters
func ConvertToAsciiSimple(imgSet [][]uint32) [][]string { func ConvertToAsciiSimple(imgSet [][]uint32) [][]string {
height := len(imgSet) height := len(imgSet)

12
image_manipulation/image_conversions.go
View File

@ -32,11 +32,12 @@ import (
"github.com/nfnt/resize" "github.com/nfnt/resize"
) )
// This function shrinks the passed image according to terminal size and // This function shrinks the passed image according to passed dimensions or terminal
// turns it into grayscale pixel by pixel to make ASCII character matching easier // size if none are passed turns each pixel into grayscale to simplify getting numeric
// data for ASCII character comparison
// //
// The returned 2D uint32 slice contains each corresponding pixel's value to be // The returned 2D uint32 slice contains each corresponding pixel's value ranging from
// compared to an ASCII character // 0 to 65535
func ConvertToTerminalSizedSlices(img image.Image, dimensions []int) [][]uint32 { func ConvertToTerminalSizedSlices(img image.Image, dimensions []int) [][]uint32 {
var terminalWidth, terminalHeight int var terminalWidth, terminalHeight int
@ -83,8 +84,6 @@ func ConvertToTerminalSizedSlices(img image.Image, dimensions []int) [][]uint32
smallImg := resize.Resize(uint(terminalWidth), uint(terminalHeight), img, resize.Lanczos3) smallImg := resize.Resize(uint(terminalWidth), uint(terminalHeight), img, resize.Lanczos3)
b := smallImg.Bounds() b := smallImg.Bounds()
newImg := image.NewGray(b)
for y := b.Min.Y; y < b.Max.Y; y++ { for y := b.Min.Y; y < b.Max.Y; y++ {
var temp []uint32 var temp []uint32
@ -92,7 +91,6 @@ func ConvertToTerminalSizedSlices(img image.Image, dimensions []int) [][]uint32
oldPixel := smallImg.At(x, y) oldPixel := smallImg.At(x, y)
pixel := color.GrayModel.Convert(oldPixel) pixel := color.GrayModel.Convert(oldPixel)
newImg.Set(x, y, pixel)
// We only need Red from Red, Green, Blue since they have the same value for grayscale images // We only need Red from Red, Green, Blue since they have the same value for grayscale images
r, _, _, _ := pixel.RGBA() r, _, _, _ := pixel.RGBA()