get_png_info {fastpng} | R Documentation |
Get information about a PNG file
Description
Get information about a PNG file
Usage
get_png_info(src)
Arguments
src |
PNG filename or raw vector containing PNG data |
Value
Name list of information about the PNG image:
- width,height
Dimensions of PNG
- bit_depth
Bit depth. 8 or 16 bits
- color_type,color_desc
color type and its description
- compression_method
Compression setting
- filter_method,filter_desc
Filter method and description
- interlace_method,interlace_desc
Interlace method and description
Examples
# Create a small grayscale PNG image and fetch its PNG info
mat <- matrix(c(0L, 255L), 3, 4)
png_data <- write_png(mat)
get_png_info(png_data)
[Package fastpng version 0.1.5 Index]