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Torch routine for generating HTML tables with embedded images
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| require 'image' | |
| require 'base64' -- luarocks install lbase64 | |
| function vis_html_table(vis_path) | |
| return { | |
| file = io.open(vis_path, 'w'):write('<html><body><table>'), | |
| close = function(self) | |
| self.file:write('</tr></table></body></html>'):close() | |
| end, | |
| figure = function(self, img, top_legend, bottom_legend, rescale, width, height) | |
| width = width or 200 | |
| height = height or 150 | |
| self.file:write(('<td><figure><figure style="margin:0; width: %dpx"><figcaption style="font-size: 0.7em">%s</figcaption></figure><img src="data:image/jpeg;base64,%s" width="%d" height="%d" /><figcaption style="background: %s">%s</figcaption></figure></td>\n'):format(width, top_legend or '', base64.encode(image.compressJPG(rescale ~= false and image.scale(img, width, height, 'simple') or img):storage():string()), width, height, type(bottom_legend) == 'table' and bottom_legend[2] or 'white', type(bottom_legend) == 'table' and bottom_legend[1] or bottom_legend or ' ')) | |
| return self | |
| end, | |
| heatmap = function(self, tensor, ...) | |
| return self:figure(image.y2jet(image.minmax{tensor = tensor:double()} * 255 + 1), ...) | |
| end, | |
| text = function(self, ...) | |
| self.file:write(('<td>%s</td>'):format(...)) | |
| return self | |
| end, | |
| row = function(self, exampleIdx, ...) | |
| self.numRows = (self.numRows or 0) + 1 | |
| self.file:write(self.numRows == 1 and '<tr>' or '</tr><tr>') | |
| self:text('#' .. self.numRows) | |
| if exampleIdx then | |
| self:text(exampleIdx) | |
| end | |
| return self | |
| end, | |
| } | |
| end |
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