Jump To …
README lib / psd / blend_mode.coffee lib / psd / channel_image.coffee lib / psd / color.coffee lib / psd / descriptor.coffee lib / psd / file.coffee lib / psd / header.coffee lib / psd / image.coffee lib / psd / image_export.coffee lib / psd / image_exports / png.coffee lib / psd / image_format.coffee lib / psd / image_formats / layer_raw.coffee lib / psd / image_formats / layer_rle.coffee lib / psd / image_formats / raw.coffee lib / psd / image_formats / rle.coffee lib / psd / image_mode.coffee lib / psd / image_modes / cmyk.coffee lib / psd / image_modes / greyscale.coffee lib / psd / image_modes / rgb.coffee lib / psd / init.coffee lib / psd / layer / blend_modes.coffee lib / psd / layer / blending_ranges.coffee lib / psd / layer / channel_image.coffee lib / psd / layer / helpers.coffee lib / psd / layer / info.coffee lib / psd / layer / mask.coffee lib / psd / layer / name.coffee lib / psd / layer / position_channels.coffee lib / psd / layer.coffee lib / psd / layer_info / blend_clipping_elements.coffee lib / psd / layer_info / blend_interior_elements.coffee lib / psd / layer_info / fill_opacity.coffee lib / psd / layer_info / gradient_fill.coffee lib / psd / layer_info / layer_id.coffee lib / psd / layer_info / layer_name_source.coffee lib / psd / layer_info / legacy_typetool.coffee lib / psd / layer_info / locked.coffee lib / psd / layer_info / metadata.coffee lib / psd / layer_info / nested_section_divider.coffee lib / psd / layer_info / object_effects.coffee lib / psd / layer_info / section_divider.coffee lib / psd / layer_info / solid_color.coffee lib / psd / layer_info / typetool.coffee lib / psd / layer_info / unicode_name.coffee lib / psd / layer_info / vector_mask.coffee lib / psd / layer_info / vector_origination.coffee lib / psd / layer_info / vector_stroke.coffee lib / psd / layer_info / vector_stroke_content.coffee lib / psd / layer_info.coffee lib / psd / layer_mask.coffee lib / psd / lazy_execute.coffee lib / psd / mask.coffee lib / psd / node.coffee lib / psd / nodes / ancestry.coffee lib / psd / nodes / build_preview.coffee lib / psd / nodes / group.coffee lib / psd / nodes / layer.coffee lib / psd / nodes / root.coffee lib / psd / nodes / search.coffee lib / psd / path_record.coffee lib / psd / resource.coffee lib / psd / resource_section.coffee lib / psd / resources / layer_comps.coffee lib / psd / resources.coffee lib / psd / util.coffee lib / psd.coffee shims / init.coffee shims / png.coffee

# cmyk.coffee

lib/psd/image_modes/

¶

    Color = require '../color.coffee'
    module.exports =
      setCmykChannels: ->
        @channelsInfo = [
          { id: 0 },
          { id: 1 },
          { id: 2 },
          { id: 3 }
        ]

        @channelsInfo.push { id: -1 } if @channels() is 5

      combineCmykChannel: ->
        cmykChannels = @channelsInfo
          .map (ch) -> ch.id
          .filter (ch) -> ch >= -1

        for i in [0...@numPixels]
          c = m = y = k = 0
          a = 255

          for chan, index in cmykChannels
            val = @channelData[i + (@channelLength * index)]

            switch chan
              when -1 then a = val
              when 0 then c = val
              when 1 then m = val
              when 2 then y = val
              when 3 then k = val

          [r, g, b] = Color.cmykToRgb(255 - c, 255 - m, 255 - y, 255 - k)
          @pixelData.push r, g, b, a

generated Tue May 12 2015 11:08:11 GMT-0400 (EDT)