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image processing to improve tesseract OCR accuracy
...s week had need to convert text out of a jpg.
I started with a colorized, RGB 445x747 pixel jpg.
I immediately tried tesseract on this, and the program converted almost nothing.
I then went into GIMP and did the following.
image>mode>grayscale
image>scale image>1191x2000 pixels
filt...
SVN needs-lock 设置强制只读属性（官方资料） - 更多技术 - 清泛网 - 专注...
SVN needs-lock 设置强制只读属性（官方资料）Automatic lock-modify-unlockFrom SubversionWikiJump to: navigation, searchDifferent versions of binary files cannot be...Automatic lock-modify-unlock
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Different versions of binary files c...
How to style SVG with external CSS?
... answered Dec 21 '13 at 16:12
RGBRGB
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CTabCtrl activetab 设置焦点Tab - VC/MFC - 清泛IT论坛，有思想、有深度
CTabCtrl::SetCurSel(n);
xxxdlg.ShowWindow(SW_SHOW);
SVG: text inside rect
...y1="0%" x2="100%" y2="0%">
<stop offset="0%" style="stop-color:rgb(145,200,103);stop-opacity:1" />
<stop offset="100%" style="stop-color:rgb(132,168,86);stop-opacity:1" />
</linearGradient>
</defs>
<rect width="220" height="30" class="GradientBorder"...
How can I save an image with PIL?
... the image. Changing the definition of j to:
j = Image.fromarray(b, mode='RGB')
Seemed to work for me (however note that I have very little knowledge of PIL, so I would suggest using @mmgp's solution as s/he clearly knows what they are doing :) ). For the types of mode, I used this page - hopeful...
What does value & 0xff do in Java?
...
It help to reduce lot of codes. It is occasionally used in RGB values which consist of 8bits.
where 0xff means 24(0's ) and 8(1's) like 00000000 00000000 00000000 11111111
It effectively masks the variable so it leaves only the value in the last 8 bits, and ignores all the r...
Automatically plot different colored lines
...hem to all be different colors. I have a kludged solution using a string 'rgbcmyk' and stepping through it for each separate plot, but I start having duplicates after 7 iterations. Is there an easier/more efficient way to do this, and with more color options?
...
Change / Add syntax highlighting for a language in Sublime 2/3
...ese color styles. Possibly more.
hsla = hue, saturation, lightness, alpha
rgba = red, green, blue, alpha
hsla(151, 100%, 41%, 1)
- last param is the alpha level (transparency) 1 = opaque, 0.5 = half-transparent, 0 = full-transparent
hsl(151, 100%, 41%) - no alpha channel
rgba(0, 209, 108, 1) - ...
PHP: exceptions vs errors?
...k;
}
table.thead tr {
background : rgb(240,240,240);
}
table.trace tr.odd {
background : white;
}
table.trace tr.even {
background : rgb(250,250,250);
}
tab...