diff options
author | scuri <scuri> | 2009-08-18 02:21:01 +0000 |
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committer | scuri <scuri> | 2009-08-18 02:21:01 +0000 |
commit | 77a4608ee1f828ed70ec58588f0229cd57758148 (patch) | |
tree | b1550da93d53331715c200f1acf8a7c1b2ff7be9 /test/lua/process.lua | |
parent | e2726d7bef3b0a1684011e558cb68ca99cfecd75 (diff) |
*** empty log message ***
Diffstat (limited to 'test/lua/process.lua')
-rw-r--r-- | test/lua/process.lua | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/test/lua/process.lua b/test/lua/process.lua deleted file mode 100644 index e942b27..0000000 --- a/test/lua/process.lua +++ /dev/null @@ -1,50 +0,0 @@ -require"imlua" -require"imlua_process" - -function save_histogram (hist, filename, format) - local height = 200 -- altura da imagem - local max = math.max(unpack(hist)) -- pega o maior valor do histograma - local n = table.getn(hist) + 1 -- zero-based - local image = im.ImageCreate(n, height, im.GRAY, im.BYTE) -- cria a imagem - local white = 255 - local black = 0 - - local render = function (x, y, d, param) - local v = hist[x] / max - local h = v * height - if y <= h then return black end - return white - end - - im.ProcessRenderOp(image, render, "histogram", {}, 0) - image:Save(filename, format) -end - -local filename = "lena.jpg" - -local image = im.FileImageLoad(filename) - -save_histogram(im.CalcHistogram(image, 0, 0), "lena_histogram_R.gif", "GIF") -save_histogram(im.CalcHistogram(image, 1, 0), "lena_histogram_G.gif", "GIF") -save_histogram(im.CalcHistogram(image, 2, 0), "lena_histogram_B.gif", "GIF") -save_histogram(im.CalcGrayHistogram(image, 0), "lena_histogram_gray.gif", "GIF") - -local r = im.ImageCreate(image:Width(), image:Height(), im.GRAY, image:DataType()) -local g = im.ImageCreate(image:Width(), image:Height(), im.GRAY, image:DataType()) -local b = im.ImageCreate(image:Width(), image:Height(), im.GRAY, image:DataType()) -im.ProcessSplitComponents(image, { r, g, b}) -r:Save("lena_r.jpg", "JPEG") -g:Save("lena_g.jpg", "JPEG") -b:Save("lena_b.jpg", "JPEG") - -local rgb = image:Clone() -im.ProcessMergeComponents({r, g, b}, rgb) -rgb:Save("lena_rgb.jpg", "JPEG") - -local replace = image:Duplicate() -im.ProcessReplaceColor(image, replace, { 146, 93, 145 }, { 255, 0, 255 }) -replace:Save("lena_replace.jpg", "JPEG") - -local bitmask = image:Duplicate() -im.ProcessBitMask(image, bitmask, "01111010", im.BIT_XOR) -bitmask:Save("lena_bitmask.jpg", "JPEG") |