grayscale

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Subtracting RGB values

I\'m doing some work with images; I don\'t want to convert them to grayscale because I want to factor in the color.As you know, with grayscale, different colors can have the same grayscale value.[详细]

2023-01-19 21:07 分类：问答
Linux command-line utility to remove colors in a PDF file?

I\'m searching for a li开发者_运维问答nux command-line utility/script capable of removing colors in a PDF. The output of the utility should be the same PDF, but in grayscale.[详细]

2023-01-19 11:20 分类：问答
Python 3: Converting image to grayscale

I\'m trying to do an exercise in John Zelle\'s \"Python Programming: An Introduction to Computer Science\". I downloaded a special graphics package for his book (graphics.py, which is on the linked we[详细]

2023-01-18 11:38 分类：问答
Display image as grayscale using matplotlib

I\'m trying to display a grayscale image using matplotlib.pyplot.imshow().My problem is that the grayscale image is displayed as a colormap.I need it to be grayscale because I want to draw on top of t[详细]

2023-01-17 22:27 分类：问答
Set individual pixels in .NET Format16bppGrayScale image

I\'m trying to render a small Bitmap in memory with .NET that needs to be 16 bit Grayscale.The bitmap\'s format is set to PixelFormat.Format16bppGrayScale.However, Bitmap.SetPixel takes a Color argume[详细]

2023-01-11 15:31 分类：问答
is there any difference between grey scale image and binary image?

is there any difference between grey scale image and binary im开发者_运维百科age?Yes, the one is grayscale, e.g. gray scales from 0.255, the binary imange is binary, that means black(0) or white(1).[详细]

2023-01-04 16:11 分类：问答
Grayscale in matlab

I\'m trying to convert a 2D array to grayscale but using mat2gray doesn\'t do anything and imshow() appears to create a binary image that when I graph I cannot rotate it, e.g. the original array is 2d[详细]

2023-01-02 03:03 分类：问答
Problem with grayscale image

When I try to开发者_开发问答 show a grayscale image using : Img = imread(\'tr2.png\'); subplot(111);[详细]

2022-12-31 11:52 分类：问答
Greyscale Image from YUV420p data

From what I have read on the internet the Y value is the luminance value and can be used to create a grey scale image. The following link: https://web.archive.org/web/20141230145627/http://bobpowell.n[详细]

2022-12-25 05:33 分类：问答
Is it possible to make a grayscale BMP file?

I am trying to make a program that outputs a 8-bit grayscale image to bmp file. I have found out that 8-bit BMP files are indexed. Is it pos开发者_高级运维sible to omit the color table and just put va[详细]

2022-12-22 07:10 分类：问答